You don’t think that claiming this is a non-issue (or mole hill) requires unjustifiably generalizing your good experience at your one company?
Normally no. But it’s based on the exact same company that OP made the assertion based on. And the relevant bit is this - I actually used the process, they didn’t. They were sharing conjecture, I was sharing experience.
Rachel didn't actually raise a request for number transfer, so this was conjecture. I've gone through the process, and it was smooth. That's why I think it's a mole hill.
Everyone is saying "yes but at other companies...". Sure. I concede that. Just not at this one company.