You may very well think that, but it wouldn’t be true. .NET is pretty sweet, as a technology. Byte-code interpreted platforms have been in computing from the very start, and .NET is close to being the culmination of the genre. Sure, if you’re working against the metal, you’d want to be using Rust, but no sane project manager would continue to use C++ in this day and age – it’s just too large and flexible a language without enough safeguards, so hard to use properly, so your competent programmers are both hard to find and costly. Or you could produce buggy code, which seems to be what a lot of companies choose to do. Rust and Julia (a kind of remake of Python which actually runs fast) are where you want to be if you’re not doing Java or .NET.
Hard to find competent software project managers, as well.