BV recommends to reset after each update. I'd rather prepare a reset (backup, etc) each time than risking loosing data because I didn't reset in a first place.
But I'm glad to know it appears to not be a problem for some users. I'll try to flash without reset next time (even if I backup just in case, not having to do the whole setup is still time saving).
I've not planned on using this phone as a secondary, I was forced not to use it as my main device because ROMs are not really stable/finished and I think it is a shame.
Is there any plan to release files for 0522 update ? I see files for Android 8 are out...