You don't need to be a Google employee to know its products lack innovation from day 1. It's a one trick pony company, having just created search, rest is only buy/copy/steal. It's a company rotten to the core. It bought a few companies back then and helped scale it with capital (Android, YouTube...), also copied others, like there's a whole Netflix documentary about Google Maps. Don't come saying that Gmail was geni…
Be fair, Gmail was groundbreaking. It's UX was miles ahead of anything else. Especially webmail UIs. Google was a good product company for a while. But the it wasn't anymore.
Sure, they were innovative to use XHR along lots of Javascript to improve the experience, but what got people into were the 1GB + no ads.
Nowadays, they probably offer one of the worst email experience, with ads and terrible privacy. How many times have we heard about the US government reading emails from other governments countries, like US spying on ex-presidents from Brazil regarding oil companies?
Google had also the coolness factor of the "don't be evil" and being overall a lean and trustful company. Nowadays nobody thinks of Google like this.