I have not seen any posts on this, but yesterday VoiceOver turned itself on unrequested on my iPad Air. No problem, I went to settings and switched it off, but about a half-second later it switched itself back on. This was amusing, but kept happening. Reset did not correct it, and neither did restoring all factory settings. I asked Siri to disable VoiceOver and that worked.
Anyone else having accessibility features that turn on spontaneously? I have them all disabled in the accessibility shortcut.