> There are a bunch of options for blocking cells from being edited etc.

I’ve already addressed this and the problems with that approach.

> Excel pros (I am none) can do quite some nice tools on top of Excel.

As I explained in my OP, I was one of them.

> Excel runs the world ...

I agree. I never claimed otherwise. So I don’t really understand your point here if it’s not to make a strawman argument.