Coming late, but I watched the vod now. Looks good enough overall.
For the game itself, I feel like sometimes you lose focus on the field meaning you have to reb bar more to compromise. Especially when someone was out of your range and you just need to rush to heal him asap. There's not much to do other than, try keep some focus on field still. Also sometimes it's not even worth to try to remove shame/div(goes to your prot too), just to call it is enough. Your prot should instant veil you though whenever he gets PB. He did most of the time, but not always. It's really dangerous, if mesmer has both div & shame recharged during PB on prot. Another thing I noticed you seem to forget sometimes you have rejuv which you can just use under shame instead of watching bars to drop, it's still something. I also think you sometimes kinda panic whenever you did get PB on heals(or just late), especially that one moment when you got PB twice in row. Well it's kinda normal, bars drop your heals are disabled. But you should just spam guardian in those moments instead of just waiting for disable to run out. Also in general you should use guardian a lot more, because it's more dangerous for prot to do it against PB mesmer.
From mesmer pov the stuff I described above makes it easier for mesmer to read you also, as situations became more expected. That's why it's good to remember you're also always playing against the mesmer not only the dmg in general. A mesmer with good reflexes is not even that bad to play against, if you know what to do.
Anyways that's my take for that vod. You should record more, need more records as observe sucks and pov with ts is more interesting anyways. Keep up the good work :)