[slrz]

Even for moderately complex designs the synthesis times are way too long for that to be feasible. Unfortunately, a lot of it is inherent to the problems/algorithms involved. So getting rid of the clumsiness of proprietary synthesis tools won't be sufficient, you are going to need another breakthrough.

[ncmncm]

It is always easy to invent ways for ambitions to be impractical. But, surprise, those are not the things people actually do with new capabilities. Instead they do clever, sensible things that work for them.