>>1941825
>Tech should be based around what you're good at doing
That would be quite limiting in many ways to more varied gameplay for each race, but the feature is already in game.
The Balticrawler Breeding Techs work like this, being locked behind not just tech points, but also how many Garthimis you have in the city, because Garthimi are more or less the only ones who can work on Balticrawlers Breeders efficiently.

Locking too many techs behind species limitations would railroad the player into very specific playstyles for every species, every time.