Less revives given?

Probably just luck, i got a lot of them.

Noticed no changes.

When you have a lot of mons to revive they become less common. I found that you if you always keep a supply then they'll keep coming

Start powering up Saiyan style (when your Mon faint), then you won't need as many.

Your Poke bag is probably out of balance. My guess, too many balls.
1) Delete Pokeballs so that they are less than half your bag capacity.
2) Delete berries to less than 7% of bag capacity.
3) If you have a lot of purple potions, use them to reduce to less than 10% of bag capacity.
4) Power up fainted Pokemons to revive them.

Same here, definitely less revives. I start putting trash pokemon to gyms just to save revives for my attackers.

I'm struggling with revives myself right now. Funny because I used to discard them by the truck load.

I "feel" this but it might just be a psychological phenomenon considering I am in desperate need of them and didn't pay attention to the rate I got them before when I didn't.