No, you are correct, that is a HackerOne employee filtering the report before someone at Valve looks at it, a lot of companies have this set up and it's not great.
I would be surprised if responsible Valve staff would agree that this is not something they should fix at some point.
It's still on Valve though. They chose to delegate this and H1 basically becomes their voice here. I wish it was made more clear, but I don't think it's wrong.
I would be surprised if responsible Valve staff would agree that this is not something they should fix at some point.