The engine isn't why Starfield sucks. Sure, the constant loading isn't great but it isn't the reason there's nothing fun or interesting to do. It's also a solvable issue, but they haven't made the investments they need in the engine.

Starfield is just soulless. The characters are boring, the stories aren't interesting and don't let the player choose fun options. The universe is static and nothing matters. There's just no reason to be involved in the world, so there's no reason to want to be in it.

They could fix this. I'd say the way they need to go to do so is to stop targeting literally every player. They need to figure out who they're making the game for and target them. I'm a big sci-fi fan, and I like older Bethesda games. I should have been an easy target for Starfield, but I hated it, not because of the engine but because the stories, characters, and universe weren't engaging. The engine is an easy target to complain about, but it isn't what's holding them back. Indie games can do more with worse engines.