If imperfection is not welcome then you will not be stable when perfection fails.
When I read the post about perfectionism from Shihan Doug Wilson, I thought about all the times I’d messed up a technique in the dojo. And then I realized, I’d done more messed up techniques in my 10 years learning Bujinkan Taijutsu than perfect ones.
But Doug made me think that the golden moments weren’t those shining rarities where I pulled off perfect techniques. They were probably those moments when I didn’t do a technique properly, but still recovered from it and kept myself safe.
Since real life is messy, maybe learning how to do a perfect technique isn’t as important as learning how to recover from an imperfect one.
Or, to extrapolate into a Zen moment: seek not perfection, but the ability to bounce from your imperfections and do it anyway.