Does it still count for innings for Affinities?
Play vs CPU?
It does and it counts just as much for xp as any 9 inning online game. You can grind these much quicker. Most of last year I’d play one of these each day for innings and xp
Is there a reason to grind these rather than repeating conquest for 10 packs?
I've been loading up squads with one team and playing a bunch of 9 inning games to burn through the TA missions. It's actually been kind of fun because it's forced me to use players I probably wouldn't while chasing the TA diamonds. Finished up Moncada and Vlad Jr. recently. Working on A's and Braves now.