"This might be controversial, but I don't think you get to be a half decent developer without being a reasonable sysadmin." Couldn't this argument be applied t

"This might be controversial, but I don't think you get to be a half decent developer without being a reasonable sysadmin." Couldn't this argument be applied to any developer for any discipline/speciality? Sure, more knowledge/context is always better if reasonable to attain, but my experience suggests that your above concerns could also be addressed via team organization rather than expecting all developers to know all things.