I had to manually copy and paste your link because the BB code URL tags still aren't working.
Anyway, I think this is a larger problem than you are thinking. It's something that needs to be updated in the BOINC server code. Even profiles for personal accounts (not just teams!) have this problem. Nobody has bothered to update for HTTPS yet. Maybe you should look for, or open, a bug report with the BOINC folks...?