Yeah those servers need to be updated anyway to support the new standard

Also, anyone using these servers is not currently putting params in GET body because doing so wouldn't work.

Those that oversee evolving standards seem to take extreme cautious to not rock the boat, and so more and more gotchas for the sake of backwards-compatibility keep getting added to the mountain of random details new devs have to learn. Which will soon include the difference between a GET and a QUERY I guess.

But at least in that case you may get a much more meaningful 405 Method Not Allowed response rather than the server just silently dropping the GET body content.