Oh... It appears we were talking about 2 different things. After reading what you wrote, it appears that too is a storm in a teacup.
You are complaining about them "losing thousands of emails" when that is clearly not the case. The issue was with their IMAP bridge, meaning the emails in question would have been lost on a local host, not on Protonmail, and the 'lost emails' were fully recoverable just by logging into the web interface.
You are complaining about them "losing thousands of emails" when that is clearly not the case. The issue was with their IMAP bridge, meaning the emails in question would have been lost on a local host, not on Protonmail, and the 'lost emails' were fully recoverable just by logging into the web interface.