Most people have to make a choice and game isn't on the top of the list.
While moving is an obvious argument for changing payouts, what about the rest? Some of us have work, families, drive home, have to eat etc. In case you didn't notice, the game takes a HUGE amount of time these days. In fact, if one would want to do everything there is, it would take more than hardcore MMO requires. Plus this isn't the game when progression is fast-paced and it's over in few weeks. Takes, quite literally, years to reach the comfort zone and defeat the raid reliably - I'm basing this on HAAT history and nerfs you dropped to ensure the longevity of Sith raid. It is time-consuming each and every day, always.
I think one-time change is a very good idea. I also think that restricting this to selected few and basing it on personal information you shouldn't even have access to without the explicit consent of the user (in the wake of EU GPDR), is a terrible idea.
In short: allow everyone to switch their times once, then if one wants to switch again - make him testify, demand proof, verify, investigate and whatnot. Please.
