Copium take: Season 6 patchnotes were bare bones because too many resources had been poured into designing Deadpool's kit.

If this was any other hero, I would never be making this assumption but with Deadpool, I think it could be believable. Think about it, from what we've seen, Deadpool's kit is unique and breaks this game's formula.

Deadpool is in all 3 roles and has:

1. Unique stats and abilities in each role
2. A level up mechanic
3. His own unique ult system

I feel it's entirely possible that the devs had to pour too many resources into making Deadpool ready for launch that they deliberately made a nothing burger season patch to get Deadpool ready. I'm going to reiterate, this is take is baseless and is basically just me coping, but I do unironically think this was possible.