There is a contingent of people that truly believe this, and I feel like that is what is motivating a lot of these "better C" languages. For me, those languages always leave me realizing I need to implement my own v-tables in 2026.
God help you if you are doing multi-threaded with closures and callbacks, web programming, something high level like ML, etc. I feel like the thesis statement of Jai starts with "Ok, so lets assume most programmers are trying to program custom game engines...". True for a very limited set of people, but makes it very painful to use generally.
Its the same feeling you get trying to use Unreal for anything except 3D first person shooters. Its possible, it just doesn't feel very good, and you start to see all the quirky assumptions of the framework.