I wouldn't go so far as to say weekly ultimate rewards should be bundles, but they should definitely be limited to armor pieces (visors, legs, chest pieces, etc) and armor coatings. Emblems feel so puny in comparison, definitely not worth the grind.
Unrelated, but I feel like the Cat bundle is the closest they've gotten to reasonable pricing. You get an armor coating, premium armor piece that applies to a bunch of different helmets, and two weapon charms for 10 bucks. If armor coatings were cross core like they should be, this would almost be a perfect bundle.
It's hilarious because it's accompanied by probably the worst value bundle they've done so far, the fire and ice bundle, which is literally just two armor coatings and their core variants for 20 bucks. They're shamelessly putting a high price on Iron Man's color scheme. Sigh.