This may be because they don't have any creature cards, or it may be because you simply don't like any of the creature cards they do have
Shivan Devastator This Dragon Hydra is my top card from this set for kitchen table play
Gavin and the CFP have already said that this is the beta form of the Commander Brackets and Game Changers, which means that we can probably expect changes and additions to this list
Any card with cycling for one mana is worth a second look, and while Compelling Argument isnt the most attractive option ever, maybe we can put it to use in a deck that values it being a sorcery (as opposed to all the cycling creatures)
Either you end up with a plan where youre fine with that, or you end up with a mish-mash of aggressive elements and controlling elements, which isnt particularly useful
For Zendikar Rising Set Boosters, that means you will get a common or uncommon that is either a showcase card or a card that's a cool element of the set that we haven't talked about yet