Or they will pick a service that works with them. This is literally how Google won most of their market share. Sure, there used to be a bit of syntax on the search, but Google always had a single input field and did not barf requests back to users because they put a field in the wrong input.
This is about protocols and data formats not user input text box (the original post mentioned JSON). It's interesting that you bring Google that lead efforts to replace more "liberal" HTTP1.1 with binary, strict HTTP2.
My point is often that those that are pushing for stricter formats have good intentions. Strong arguments, even. However, what is required to grow the adoption of something is different than hardening it. And typically hardening something makes it brittle is some way. (Which is super risky at the adoption stage.)
And, of course, most people don't actually understand why they succeeded at something. It is easy to understand failure from a specific cause. It is much more difficult to understand success from a combination of many causes.
