You obviously haven't played against Beedrill. I have never seen someone Dark Palm the Flutters back because you want us to not do damage. Why would you Dark Palm 1 Flutter (you can't Dark Palm me twice a turn) when we have another Flutter and a Claydol in the field? And trust me, you won't OHKO the active Beedrill (which isn't a Flutter, but could be something we want to sac ending us with 3 Beedrills) because you will end up Uxie-ing because we outspeed you (you probably don't even have a good setup anyway).
And yes, Dark Palm.
EDIT: Ofcourse we have SSU to get out of the Palm.