I agree with this completely. But don't you think this is exactly what we're getting nowadays? I am speaking strictly only about classic, old-school cRPGs (similar to BG3) and NOT the big, open-world, action cRPGs. And among those RPGs, it's almost entirely TB nowadays. You can count the RTwP games in single digits.
Well, there were Pillars and there is still Pathfinder. While Turn-based option is added, I believe Wrath of the Reightous was said to be still developed with Real Time balance in mind.
And then there is Wasteland (which has turn based roots I believe) and Larian, which seemed to prefer creatively turn-based over real-time.
I would like to see a big budget real-time with pause RPG. I think a big issue of games like Pathfinder or Pillars is poor visual feedback, and bigger production value might help in that regard.
Wasteland is TB.
I also would love a big budget classic fantasy RPG with RTwP. The closest right now is P:WotR, but that is nowhere near being a big budget game. And all other RTwP RPGs right now, to the extent that they even exist, are tiny budget indie games (ex. Black Geyser, Alaloth, Waylanders).