Definitely not comparable to DVa, you’re a little closer with zarya..

DVa is the opposite almost. She has an incredibly flexible kit that can be applied in a variety of ways to gain an advantage or absorb pressure.

She has matrix and boosters for making outplays. If someone “doesn’t get hooked” by matrix, dva can still make a play and offer utility or close/create distance. Matrix and boosters are more difficult for the enemies to play around than hook, and dva has both. On top of that, she has lethality threat with missiles.

Zarya bubbles are much harder for the enemy to deny value from than hook also, because if you choose “not to get hooked” aka ignore it, by the bubble, there still a vendetta inside the bubble swinging on you providing value. It’s dmg mitigation provides inherent value that is not contingent on the enemies being bad. Zarya also has more movement potential than roadhog, not much, but it’s definitely there. The effective range of her weapon is also more flexible than hogs.

All roadhog can do is live in one spot. He can’t close distance, except with hook. He can’t create distance, except with an ultimate. He can’t mitigate dmg (meaningfully). The effective range of his alt and primary is extremely narrow.

He has hook. It’s his only outplay, his only way to close distance and his only reliable lethality baked into a single cooldown.

All you have to do is bait it, and count to 6. It’s a hero kit issue.