Frankly even if (4) was your only goal here, that feels like more than enough reason.

Not sure how it goes where you are, but where I'm from (New Zealand), FTTH is widely available but the exact locations within houses where ONTs get installed often leaves a lot to be desired.

If you don't want your router in one corner of your house where it only provides WiFi signal to half your rooms, you either have to have an installer who'll tolerate your request (due to the way they're paid for installations if you suggest something that takes more time you'll often meet some resistance), run cables of your own from the ONT to a better location for the router, or go with better access points.