Kenneth Fisher shows that the Data Migration Assistant developers thought ahead:
I’ve been really excited about the new Data Migration Assistant (DMA) since I first heard about it. One of the things I like best about it is that unlike the old Upgrade Advisor it doesn’t have to be run on the server being upgraded. You can run it against any number of instances from a single workstation. The other day I was working from home and tried running the DMA against a couple of moderate size databases (about 1.25tb total) and I consistently got timeout errors.
Click through for the solution. I’d prefer “have the queries be quick enough not to require this change” be the solution, but I don’t know exactly which queries they’re using, and some DMVs/DMFs can be quite slow.