There are a couple of things, but if you are getting anything on-screen then that's better than it could be. That same situation has lead to dead chassis for others in the past.
I think it's a very low chance your tube got damaged, but it's not impossible. I wonder if the HV divider, responsible for both screen and focus voltages, could have been damaged. That's not fixable, and not measurable without proper equipment.
It is not too hard to find an MS8-29 that's broken to salvage a flyback off of, though. That might be a good course of action.
If you find an MS8-29FN22, a later variant, then I'd say just use that chassis and never let the other type back into your house!
As for the cap, it looks fine. That looks as if it is just factory goop to hold it in place (with its neighboring cap having been replaced, though, it does nothing).