They've been commenting here. The reason we haven't gotten 'updates' or 'ETAs' is because they just don't know, or they think they know, but they thought they knew before but were wrong, so what is not to say they are wrong again? So likely if they are confident on an ETA they will say so. Otherwise they will just tell us when it is fixed. That is the nature of troubleshooting/fixing software issues like this. Be patient ... find something else to do with your time other than whining here because the grownups in the room don't need to hear it.
Ok, now I'm getting a bit disappointed in the community.
I know they have been commenting here, but not much, and without any good story of what is going on.
When they do a maintenance where they go to a different server, they should have thought about a way to go back in case shit hits the fan.
The last part of your post cuts no ice. A lot of people have money stuck in MP, and I guess it's no problem if they have to wait a day or two. But if you have a website with a lot of users that trust you with their money, a little bit more transparency isn't too much to ask.