The suggestion that blank pages are only created because the user does something isn’t a suggestion, it’s fact.
Without Engrave mode you can’t, to my knowledge, introduce Page Overrides. Without introducing Page Overrides you can’t end up with a blank page. Sorry if you find this patronising.
My feeling is that it shouldn’t be possible to do anything in Elements that you then can’t undo in Elements, so if you can find or construct a file that has a page override (or Master Page Change) that was introduced in Elements, please share it (or share the method). It’s possible to end up with a blank page in Elements if the page already has an override, of course, but the file would still need to have previously been edited in Pro (unless I’m much mistaken).
In Pro, deleting blank pages is easy once you recognise they’re caused by an override.