It's hard to say.   You see there is a general flaw of people, myself included.    To say IF YOU TRY THIS THING X THAT HAS NOT BEEN DONE BEFORE then THIS IS GOING TO HAPPEN.

This can lead to paralysis or instead doing the same shit that already doesn't work because they don't want to try X.

Your points could be valid.   I'm willing to try them all.    As long as we don't act like the government and refuse to ditch something that when we try it makes things worse.

Yet, also assumptions and speculations are often wrong.   So I'm willing to test pretty much any NEW idea to see what it does.

The problem is with too many ideas at once it can be difficult to determine what actually had a causation related factor.

The user interface changes... I'm fine with them doing a lot of those at once.   You'll get good user feedback letting you know what works and doesn't work there.

The back-end stuff though we should be very focused on and not do too many things at once.