When I write “I don’t understand the problem that requires removal of current agent finder,” I am thinking back to when EVE gate was shut down. CCP explained a serious security problem required them to shut it down.
This case is more like the ongoing work to improve the star map, where CCP elected to keep “old map” operational for a while longer.
I’ve worked in software development and been surprised by last minute check-ins, and given the holiday period it’s possible a late code check-in before the 9th could address some of the problems seen on the test server right now.