I couldnt agree more, setting up Bike on every other server gives you the same maintenance headache(perhaps a little simpler) as having a version of phpMyAdmin on each.

I just yesterday wrote a blogpost about tunneling mysql and using a locally hosted phpMyAdmin for those needs. That will give you the benefit of having phpMyAdmin at one place and you'll be motivated to keep that updated and properly configured. http://text.krona.tm/post/25982176151/using-phpmyadmin-witho...