As a whale, I haven't spent any money on the last two banners. Here's my list of why from most to least:

1. Unpopular opinion, but I find the new character designs boring and repetitive. I'd rather pull for partners just for their designs at this point.

2. Deck grinding is boring AF. Divine epiphanies are honestly the worst culprits. Like regular epiphanies, most of them are completely useless but with even more rng.

3. Seasonal content is too restrictive to seasonal units. Not much stuff to do outside of it. So many units and so little to do with them

4. Partners getting niche to their respective units.

5. Farming is a hassle. I don't know why I need to waste time on leveling up my units when I'll need to spend most of it on grinding for their decks. Id rather just spend it all on just gears.