Diamond 3 tank, Diamond 4 support... Gold 2 DPS?

I can't for the life of me climb my DPS. Maxed out at maybe 2700 in OW1, whereas I peaked Masters on tank and mid-diamond on support. I always told myself it was because I didn't grind it. Now in OW2 I find myself queuing DPS more consistently because of the long tank waits, and I'm falling with more time played, not climbing.

Y363SQ - Route 66, Ashe, Gobsmacked, CONSOLE

I'm posting this replay because it feels like a mood for most of my games at this rank. Any part of the map that's not where the cart travels is invisible to most of my team. People hold ults way too long and someone is dying constantly and underperforming (in this case my other DPS). Other games I have, like, a Rein who sits cart the entire attack round or a Zen constantly getting picked. I'm often the only one taking a different angle while my team all sits low ground main. Obviously, I can't do anything about that other than change how I play.

As Ashe, I'm looking to pop out on unexpected sightlines, hit a big dynamite on the core, and pick someone who's not looking at me. I've been working on good engagement timing, not dying, and well-timed ults. I try to peel flankers as I see them and, in general, corral the other team into spots where my tank can clean up.

What's a new focus I should have on Ashe? I feel like I'm missing something simple...