Not to undermine the message, because yes, especially locally, votes count - but the only reason they were able to avoid the veto-override was that a couple more Republicans changed their votes from when they originally passed the legislation.
So, actually this is more "vote and" adding to the message rather than undermining, because at least one of those Repubs said her changed vote was due to people in her district contacting her and urging her not to support the override. So vote AND contact your reps.
(Kansas Reflector is a good source for KS news for those interested)