The MTD is one of the first things that a judge needs to decide
That makes sense.
It's just that the way your initial comment was:
The Friday hearing was about the government’s motion to dismiss
made me think that this was the only thing discussed.
So briefly, on Friday started the hearings of the case Defense for Children International-Palestine v. Biden, and Biden's defense lawyer said their piece, which was -at least in part- their MTD.
(I haven't watched all the videos yet. Will do to have a better understanding of the case.)