Welcome to the life of a sombra main. At least your hero is not so bad you had a dedicated meme here on the forum.
Buffs and nerfs happen and OWL pretty much dictates which heroes those are for the most part these days cause they have to keep it “interesting.” Everyone cried for armor nerfs cause of brig, well we got it and every tank took a hit from it. And if your hero is getting played in every match well congrats your making overwatch boring to watch cuase every team has a d.va, expect a nerf.