It´s Hamtaro time!
For instance, my one pal is gobsmacked that her favorite hero, Mercy, has been nerfed to the point of being redundant.
Mercy will always be difficult to balance. Having a teamkill negated because a Mercy was hiding somwhere was never any fun, and Mercy´s one-person ressurect is still powerful enough that a team running a Mercy will almost always have a huge advantage over a team not running Mercy, at least in the comp scene.
I gotta say, I am really positive to the new "looking for group" and endorsement system. I was trying it out in comp and joined a group as a tank. So in the middle of the match, and at a critical moment, I completely bungle a Reinhardt ult (as in, I didn´t get a single guy with it) and we lost the round pretty badly. Normally that would probably lead to everybody chewing me out and even possibly even someone ragequitting but not this time.
So, next game I end up being way more communicative on the mic (usually I just call out enemies coming in with ult, asking who wants nano-boosts etc and saying when to push in with Lucio and so on) and we end up winning the match, netting me a shot caller endorsement!
Sure, you may be cynical and say that the endorsement system just makes everyone be "fake nice" but what is important is that I feel that it kept the team together in a situation where the team would normally have melted into a pile of toxicity+encouraged me personally to make up for my mistake in communicating with the team.