We should already have engineers in Colonia and we shouldn't have to jump through rings to build them up again, what a load of rubbish, the idiot who thought up that idea needs sacking and lets move forward with the game, not 2 steps back.
So, when Colonia was founded the basic request from the players was "the ability to found a new player-driven colony".
While Frontier have arguably been pretty good at providing CGs and rewards which match how players generally wanted Colonia to develop, the ability to directly prioritise what blueprints engineers specialise in is:
1) The first non-CG occasion on which player actions can provide a permanent improvement to the galaxy (as opposed to 2.4's station repairs which just remove a persistent detriment, or the BGS and Powerplay which just shuffle the existing bits around)
2) The first directly player-driven way to enhance a system. (as opposed to hoping your CG gets into the queue)
Yes, the level of blueprint provided by an engineer is fairly minor in importance - especially since for anyone with a decent set of pinned blueprints, there's minimal benefit past G1 anyway - but it's a good proof of concept of the principle.
I guess people will vote with their feet as to whether this is "too grindy" or "exactly what we were waiting for" ... if the result is "too grindy - we should have it all handed to us on a plate by Frontier" then I expect they'll quietly deprioritise any other colonisation and development mechanics on the roadmap and just go back to moving the Thargoids around once a week. But I don't think that will happen...
It's just plain stupid.
An engineer at a Frontier outpost of civilisation requires you leave and go back to where you came from, to visit someone who has nothing to do with anything, someone of absolutely no relevance to anything going in Colonia. Go talk to someone literally half a galaxy away, before said engineer will talk to you!
Seriously would any engineer in Colonia EVER ask someone out there to do that? It's just ridiculous.
It's not how I'd have done it - I'd just have had however many there are as their own tree with a "common knowledge" one at the start - but there's a good argument for doing it this way:
1) Any Colonia engineer, by definition, has an "invite" requirement (travel 22kLY from start and then probably do something else) several times bigger than the 3rd-row Palin, so making them 2nd-row is hardly disproportionate
2) Absolute beginners really shouldn't be getting pointed at Colonia anyway, which a "common knowledge" engineer would do.
3) As with a lot of changes it may catch a few people in a bit of a strange situation on release day, but six months down the line or for people starting the game the day after 3.2's release it will be completely irrelevant. "Unlock the basic engineers before you leave" will be just as much a part of advice to people travelling out there as "pin some good blueprints before you leave", "remember to put some A-rated modules in storage" or similar already is ... and as "if you want anything that's not a D-rated Viper/T-6 you'll have to bring it yourself" used to be in the earlier days of the region.
When 3.0's remote workshops came in, everyone in Colonia who wanted to get any use out of them had to make a round trip for the pins. (And probably unlocked any worthwhile engineers they were missing on the way to get some extra pins) Wasn't a big deal then ... certainly not a big deal for anyone thinking about heading here for the first time now!
Ye so Jacques Station was established before the engineers. There are loads if unengineered ships out there. You can be a dogus about it all you want. It's stupid and it's quite clearly stupid.
Jaques was established before engineers, but wasn't discovered after his misjump in the Eol Prou region until around the 2.1.05 release, several months after Engineers arrived. The initial work to stabilise and rescue the station involved a lot of hauling from the bubble, with the region only really getting its own basic economy in 2.2.
I've met the occasional person passing through Colonia who had literally been on an exploration trip on the far side of the galaxy since before 2.1 (2.5 years ago!) and had missed ... well, quite a lot, really ... but they were extremely rare and had bigger to-do lists anyway.