my cat eats my dogs orijen regional red kibble for a treat. She chews it.Maybe it's just me but I don't find Pure Bites and similar to be crunchy. The consistency is kinda like styrofoam. ;-) Plus my two don't seem to care for those.
That said, even if the treats are crunchy, it's possible the cat won't crunch those anyway. Put a few bits of a small kibble like Orijen down, and mine are more likely to swallow those whole I think. I never really considered the size of the treat, so I might look at that going forward. Most of them are small. And yet the chewy vs crunchy still seems to matter with those small ones even though they aren't likely to chew them. Cats....