Removing features simply because they're not used by everyone every single day never made sense to me. Even if it is something only a very small percentage of users use, so what?
Because a lot of people get confused by too much information and too many options. And contrary to nerds they won't simply dismiss what they don't need they tend to avoid it saying it's too difficult. I'm not surprised if Google has analyzed that they'll lose 0.1% tech savvy users and gain 0.2% computer newbies instead. A case study: My online bank.
They used to have rather information dense pages and complex filters and dialogs with lots of cross links to related functions. I loved it, you had pretty much everything you wanted to see, do or go to at your fingertips. My parents, well they used it because I used it and having free support was more valuable than trying some other bank. They redesigned, far more simple pages. Far more hierarchies and less directly accessible functions. I hated it, at the time I mostly blamed it on designing for cell phones and tablets not big computer monitors.
But then I saw how my parents liked it much, much better than before. They said it was so much simpler and less confusing to use. Even though they never used but the first two options, it was far simpler to choose from three than eight and the rest hidden under "more options". The transcript page used to have lots of filters, now by default it has account and period, with the period being predefined like "last 30 days" or whole months with custom dates hidden another layer down.
And it turns out, that's all they really use. if they ever wonder if they did pay the power bill of $100 in the first two weeks of January they wouldn't filter by recipient and amount and date. They'd just scan the monthly statements manually. I'm thinking this and this applies, sure they could learn how to make the computer do more but is is worth it? Considering how little they seem to remember of the basics, I'm thinking neither the investment nor the upkeep is worth it.
So I can totally understand why, the question is do you have to only cater to my parents. But when push comes to shove, I'll manage to do five clicks instead of two just fine even though I'm slightly annoyed by it. My parents though, for them it makes a real difference. Unless it's really a professional's tool that you work in many hours a day, I'll always survive doing it the slightly harder way like just X'ing out all the tabs or hitting Ctrl-W repeatedly without being a make-or-break deal. It would be nice if we could have a browser by nerds, for nerds though. Maybe it's time for a new Phoenix?