I feel like the oft-repeated laboratory idea only makes sense if you already have ship Interiors. They don't really make much sense as a reason for ship Interiors, since there's no particular reason why you couldn't just do all of the content involved while out in the field.
I think the biggest problem with the original exobiology mini game was that there were no secondary factors involved with the game, which resulted in it just being an identical grind each time. It didn't even matter if you failed, you would just sit there and do it over and over and over until you finally got it.
If there were environmental hazards, and failing the Mini-Game completely would mean that you could not scan that particular biological again, it could have been a lot more fun. Imagine if there was a planet that was hot enough that your suit would quickly run out of battery life. You are then under time pressure to solve the puzzle as quickly as possible, before you run out of energy and need to make a break for the ship. This would be especially entertaining as it would often lead to running out of energy. This would have the handy side effect of making the extended oxygen supply engineering effect actually useful.
So you land your ship, Sprint as quickly as possible to the plant, start the mini game, try to finish it as quickly as possible, and then Sprint back to the ship, often with your batteries depleted.
They also could have improved it by having some sort of reward for doing it extremely quickly and efficiently. A "perfect scan" credit bonus, for example. Players like getting better at things, if doing so results in equivalently better Rewards. But with the old system, the amount of time you spent a scanning was such a trivial aspect of the overall time investment, that there was no particular reason to try to hone your skills.
Lastly, and, in my opinion, most importantly, I think a big problem with the mini game was that it took attention away from the rather beautiful plants, and instead put it on a series of circles that weren't all that interesting to look at. I think the mini game would have been a lot more interesting if players were encouraged to actually look at the plants; perhaps, make the mini game easier or harder depending on whether or not you have selected the largest or smallest plant, or some other Factor, like whether or not it's flowering. Make players actually look at the things they are scanning.
If I found some plant that had like 35 flowers, allowing me to solve the Mini-Game in 2.6 seconds, that would be pretty cool, and the sort of thing I would post on the forums.