Fully agreed on the birds. The WFC mold was solid, and all I'd ask for is a flapping up/down joint for the wings. And, perhaps more simply since it's not an engineering need, some actual retooling to the top surface to be less greeble and more cassette. But I like the idea of just letting the backpack and barrels be a separate accessory as they did with Ratbat. Still, even if they'd been the same foldout backpack as before, I'd have been fine with it. The new one doesn't look that much more substantial anyway.
The Ravage mold might've benefited from just being a Core class standalone like Steeljaw or Frumbzy. Except instead of spending on big accessories like the speaker or the piledrivers, the budget could've gone to more parts for Ravage himself. Of course, with no Core class now, that's not really an option at the moment.
(I am bummed that this also seems to mean no more better-proportioned Rewind/Eject in the style of the redone Rumble/Frenzy, but who knows. They redo these things so damn often it's not really impossible.)
As it is, I'm not too fussed about the janky cassette altmodes, as the slide downward began well before this trio. It's not like Steeljaw and Ramhorn, while better, are particularly stellar. Plus I've supplemented my official cassette guys with lots of Dr. Wu ones with similarly wack tape modes, so these will fit right in. Or at least Ravage will, as I'll probably just use the older birds.