Strange they drop Doomfist the same day reports start coming out of Korea that a lot of pros are sick of the stagnation with the current meta. And most of it is at the hands of Blizzard.
It's all dive, all the time. Any dive counters have since been neutered. Zarya can't sustain energy anymore, Hog is completely useless in his current state, Rein is busted beyond belief because of bugs/hit detection issues, and Orisa is....there.
Doomfist will likely further perpetuate this and perhaps even cement the seldom used 3 DPS (Tracer/Genji/Doomfist) one tank (Winston) one healer (Lucio) as the way to go
So out of a pool of now 25 heroes, you have roughly 9 or 10 that are useful;
Tracer
Genji
D.Va
Winston
Lucio
Zenyatta
Soldier (seldom used depending on situation)
And then you have another 3 or 4 that are only useful in very specific situations
Sombra (Anubis point B)
Pharah (KOTH pick)
Mercy (KOTH pick/literally only rez fodder/pocket healer)
Even a totally viable character like Ana has been shunned since she can't keep up with the fast moving meta.