I think low level is fine as long as encounters are balanced or the key is to run rather than fight sometimes ..you can tell they are really looking at the ability for players to do as much as possible, to give as much freedom for thought & ways of trying things.
I must admit slaughtering piles of kobolds & goblins i've always kinda enjoyed !

This is going to be a hell of a game ..no pun intended ....but i do agree as long as they dont gimp/nerf iconic higher level monsters - like in sword coast legends where you take on a lich at level 6 odd ....never in a million years could you survive that..

Iow to mid level campaigns can be great - bring it on !