I don't see RT/w Pause as being multiplayer friendly, in fact it's 100% not at all, especially if you have 4 players and a DM. You are consigning certain players to simply missing turns. Then it would be impossible to manage things from a DM perspective.

No, Larian is doing the right thing here. The multiplayer game is the real prize from BG3, done right and its has enormous potential that goes much further than the single player story.