Well, after a single game, I've changed my mind
Cantrips, some of which could draw you lots of cards (like Foreshadow + Portent), could draw you into the lands you needed, but sometimes you just used one of your Counterspells to stop whatever they were doing for the turn and give yourself another turn to try to draw land
It also adds an interesting layer to something like a Veteran Explorer or New Frontiers
Then, for its fifth chapter, it gives all of your other creatures a +2/+2 boost as well as the real kicker, indestructible counters which stick around, making your entire team pretty tough to defeat
That's what head designer Mark Rosewater seemed to suggest earlier this month anyway, as he recently claimed that Universes Beyond isn't "an endless well", and that there are a finite number of franchises to cross over with that will be popular