I was wondering how that distance change might work.
I definitely don't use Roadhogs L2 enough as it is... Don't play him enough to figure out ideal range to change between them
I play a decent enough Roadhog on defense and anytime there's an enemy Reinhardt I spam L2 and it breaks his shield in around 8-10 shots. Combined with team fire it goes down very quickly leaving them open for a hook. If an enemy is around 100 health or less I have a decent shot at finishing them off with the L2 at around 10-15 meters too. Generally the distance between two teams for choke battles.
This spread decrease might really raise the pick rate for the L2 in choke battles, making it like a long range reaper shot.
Pip and I had an awesome game on eichenwald defense yesterday, he was playing Mei, I was Roadhog, and our rein had solid communication. We were pulling in their tanks and walling them in to finish them off. Enemy team only made it past the choke once, when their Rein got desparate and charged in, we backed up a little but focused him down.
Love communicative matches like that