Sorry, but there is a lot of bad reportage in this thread. It boils down to a rather simple dualism:
1. Good musicians (with recording experience) can play with a click, regardless of instrument
2. Bad musicians can't.
It is neither more nor less difficult for a drummer/percussionist to play accurately to click than anyone else. No one likes to pull rank or puff themselves up, but I've played percussion live and in recording for 3 decades, in many situations, and with many killer instrumentalists, singers, composers, arrangers and producers. The only lame people that couldn't play to click are just that: lame or inexperienced.
Feel, style, groove - all those are somewhat different issues, and don't negate the ability to play to click. Think Keltner can't play to click and have a pocket deeper than deep? Gadd? Etc?
It is a basic recording skill that *anyone* can learn if they apply themselves. Drummers aren't genetically inferior, click-wise. If you have this experience, you are working with the wrong drummers.
[...hmmm, it felt good to get that off my chest...]
Envoy