Atm ahead of time boni are even misleading for new players, who think it's a good thing. It's just not.
It was introduced(same goes for corruption) to counter the habbit of teching mil way beyond dip tech and in a certain way also beyond admin tech.
It just didn't work at all. Maybe it's time to make dip tech at least something useful.
For non colonisers it's just wasted points you can tech up very fast later on to get to the juicy parts for no drawback at all, period.
The whole concept of ahead of time needs either a heavy rework with actual useful boni(which make it worth to "waste" points on it) or just made plain clear that it's more like a you win more kinda thing, with 3 out of 3 3-5 advisers, OR you make Sea battles/dominance acutally a thing.