This does now make it harder to select properly, or tell what is select-able. For instance, previously, non-viable blockers would be grayed out. Random e.g. : it now makes it appear my 1/1 Citizen token can block a flyer. Until I try.
Clarity of attackers and what you can block when you go to select a blocker in multiplayer is much less clear after the last update. Hopefully that is one of the things that can be tweaked as they fine tune things.