Everything happened so fast, a lot to unpack.
First, Michael's mother. I guess we're in a different timeline.
Well -
1) Michaels mother had made many attempts to change the timeline and failed because every time she got pulled back, she was again, the only life form left in the Universe -- so she jumped back again...rinse repeat until she got 'caught/trapped' by the Discovery crew.
2) When she got 'pulled back' the last time (after being caught/trapped) - she got pulled through that Wormhole WITHOUT wearing the Red Angel suit = She was probably killed.
Hell, Michael nearly died, and she was wearing the suit.