To my thinking, sticking to rigidly to Lore can stifle any future expansions or additions to the game. For example, according to Lore there haven't been any new ships designed or released for a couple of hundred years. But suddenly we get a slew of new ships, which does break the Lore that no new ships have been released for centuries so why now and why so many? Or going by Lore, there weren't any Engineers, yet suddenly they not only pop up but have substantial bases and networks between all of them and the ability to contact individual Commanders anywhere in the galaxy.
Guess what I am trying to say is if Lore becomes too entrenched in the game everytime something new comes along someone will jump on here and say it can't happen because Lore won't permit it.
When applied correctly, lore should be neither a cage to trap creative thinking nor a frivolous trinket to be cast aside at will.
It should instead be simply a compass to direct an author's imagination.
If we look at a franchise like Star Wars, a "fundamentalist" might try to insist that the Emperor doesn't exist, there are no ice-planets in the SW universe and that the Empire flies only Star Destroyers and TIE fighters, the rebels fly X-Wings and Y-Wings and everybody else flies around in Corellian Corvettes and TY1300 Freighters.
Clearly, that's be incredibly narrow-minded thinking.
SW introduces us to The Force and shows us that it's usefulness varies depending on both a person's innate ability and training so it's plausible to assume there
might be some kind of "grand wizard" who's learned to harness the power of The Force for his own evil ends.
We know that planets have different climates due to a variety of factors so it's plausuble that humans might choose to live on a whole variety of different planets.
We see the sort of technology incorporated into ships in the SW universe and so other ships, that incorporate similar technology are also plausible.
And then there's the "progressive" extreme...
Ever binge-watched a TV series such as, say, Doctor Who and noticed that he saves the day by doing something and then, a few episodes later, you wonder why he couldn't just do the same thing again in a similar situation?
That is, I'm afraid, just poor writing. The writers are paying no respect to pre-existing lore and they're just making poop up as the go along and then discarding it again afterward.
Which is how, in the new SW, we ended-up with instant hyperspace travel, space Mary-bleedin'-Poppins, hyperspace suicide-ships and Force-healing. Etc.
When that happens it IS jarring because, like in episodes of Doctor Who, we
have often seen similar situations before and none of this suddenly-critical stuff has ever happened before.
The trick, with lore, is to expand it in
plausible ways rather than fantastical ones while, at the same time, not ignoring it completely.