Solasta did it and it appealed to a tiny number of existing fans of 5E so that's evidence it's the only possible solution.
You mean the estimated 14 MILLION people that play D&D currently? And I don't understand the mentality behind thinking you SHOULD deviate from 5e for a video game. The system has been refined for years to be as balanced as they can possible make it. Is it perfect? Of course not. Have other games like Solasta and Pathfinder: KM been able to translate TT rules into fun and well done digital version? ABSOLUTELY. But Larian started this project by telling everyone they want to make BG3 as faithful to 5e as they possibly can. That sets an expectation. Come to find out that they decided 5e isn't popular enough with people (despite the ~14 million active players), and need to gamify almost the entire rule base in order to fit THIER vision of what 5e is, or should be. As a fan of Larian, DOS, BG, and D&D (DMing for over a decade) I can say with confidence that I honestly don't mind them changing a few things here and there as needed. I get it. But they have bastardized the ruleset SO MUCH, that it only vaguely resembles the original system. Its painfully obvious that they simply ported their DOS system into BG3 and then have been trying to fit the DOS engine into 5e. Instead of designing their foundation around the 5e system, which they probably should have done, they are now caught desperately trying to shove elements of 5e into their DOS engine to try to pass it off as a 5e system.
I'm not a purist by any means. Like I said, I get it. But when you start a project with the goal of making as faithful to the ruleset as possible, you set that expectation for people that play the 5e ruleset. And so far, the 'As close as possible' has turned into 'Meh, close enough'. And that's what upsets people.
