I think the most frustrating thing happening with the boost shuffle for the adjustment to the Apex/Swap meta is deciding what to do for your cunnings.
One one hand you want to give them more HP to survive swappers that are now coming from up to 4 relevant creatures in Ceramagnus, Monolorhino, Dracoceratops, and Dracoceratosaurus, sometimes the odd Wooly Rhino or Monostegotops.
But on the other hand, where you’d expect to sacrifice some speed, you still run into the serious new issue of Nitro Mortems, where the worst thing is to be one shot without at least getting one hit on it, before the inevitable Cleansing Impact (which is another huge issue entirely).
All of this while there’s already the ever-present speed war between cunnings themselves, where just one tier could turn the tide of a match or definitively decide it.
This makes the shuffle stressful because boosting is relative to your current arena, so it’s difficult to invest proactively, as you get beat by builds that have reached their ceiling and thus terrorize their plateau, halting your progression as well.
In other words, we need shuffles to happen way more than once a year to truly evolve with the game rather than be stuck with choices that were only good at the time.