Wizards can't make new, expensive cards as quickly as it wants to reprint expensive cards, and the lack of expensive cards to reprint would necessitate changes to increase the amount of reprint equity if Wizards intends to continue reprinting cards at anywhere near the pace that it has been for the past year or two
Savior of Ollenbock has two separate abilities, which means you can permanently exile something by sacrificing or otherwise getting it to leave play before the first ability resolves
The really standout legendaries like Aurelia, the Law Above (only technically a Battalion creature) and Tajic, Blade of the Legion are decent cards in their right, but their Battalion keyword is more of an "added spice" than something to build around
The Elite Trainer Box has 10 Crown Zenith booster packs, a Lucario etched special art card, and gameplay accessories
Its just nothing to write home about