For example, support for more than one email address is considered a power user feature that Google is dropping.
If that is a power user feature, I must be a robot fusion-powered space mutant turbo ninja user, because I have at least eight email addresses that I use somewhat regularly (including work addresses) and probably a dozen more that I am aware of but are in states of abandonment.
I’m not a power user and I have at least three or four email addresses I use regularly across different domains, and I just thought of nine email addresses.
What Google and most other companies these days considers a power user is someone who is capable of talking without drooling, and mostly forgoing humping the furniture.
Part of is to take away control for power’s sake alone, another part is that they think it leads to greater profit. But neither you nor I are that unusual; I’ll bet a large percentage of adults has at least three email addresses, and I know people who have more addresses than I do.