Google Takes Gmail Security to the Next Level with Client-Side Encryption
Like their announcement that they will stop using cookies, my guess is they have so much data from non-encrypted sources, that this token gesture (see what I did there) is more appeasement than complete privacy.
Shows there must be sufficient enterprise value attached to making this move though. Can't hate on them too much though, they drive enough innovation that inspires more from the alternatives.
more appeasement than complete privacy
Except it is not about privacy, but checking a checkbox for compliance rules of Fortune 500 companies.
To be honest it would have been nice if Google actually made some innovation here, since both PGP and S/MIME are conceptually broken, but sadly they only added native S/MIME capabilities to the Gmail ui and management tooling.