Microsoft helped the NSA to circumvent its encryption to address concerns that the agency would be unable to intercept web chats on the new Outlook.com portal;
The agency already had pre-encryption stage access to email on Outlook.com, including Hotmail;
http://www.theguardian.com/world/2013/jul/11/microsoft-nsa-c...
If you want secure communications, you don't use email or you use something you control.
It's like saying "most regular envelopes go through the Post Office using plain vans, if you want secure communication you send it in an armoured van staffed by personally-vetted Congolese mercenaries". Nobody touches Post Office vans not because they're hard to assault (they're not), but because they're shielded with thick walls of law.
I know that smtp is more like sending postcards and yadda yadda yadda, but that's not what most legal systems have assumed for 20 years, nor what the public at large expects.