The issue is convenience I suppose. Having everything tied to one account makes it quite simple to jump to your calendar, your voicemails, your checkout, etc.

The issue is convenience I suppose. Having everything tied to one account makes it quite simple to jump to your calendar, your voicemails, your checkout, etc. I really like the author's idea to (at a minimum provide) an alternate gmail password that mail clients can use. That would alleviate most of my concerns.