ball doesn’t need to emote to corner peak leaving him less vulnerable and still giving him the most outplay potential in the game
none of this gets close to how extreme ball tech can get
beyond wall jumps, corner jumps, ramp jumps or super jumps there used to be double boops, minefield double boops, super bounces etc.
if your playing at a range where roadhog can 1shot you without hook that is your fault 
and hitting a hook on tracer is diffucult so…
500 health 100 armor
600 total hp
1200 technically
and once again
massive hitbox
largest in the game I believe (take that with a grain of salt though rein’s might be bigger)
ball has the highest skill ceiling in the game still