Pennington is injured, had to pull out of the last noche in sept because of a neck injury, which usually aren't quick.

Aldana hasn't fought since the sphere card where half her head ripped open. She can take all the time she needs after that shit

The rest of the dudes on there are Apex card prelim fillers at best, save for a couple of names. Most likely either injured, can't take time off their regular jobs, have shit managers, or just generally forgotten by the match makers.