Flying Bean
It sounds like your pro-active reaction to FMC-apprentice's email should have some effect, assuming the Chief Pilot chooses to look at pprune!
Its a very sad state of affairs when anyone, be it captain, FO, C/A, engineer or ground staff feel they cannot make an honest and justifiable complaint without jeopardising their career.
CRM is great, and most effective on those who least need it - the more thick skinned ones will always be thick skinned whatever you do - hopefully CRM will have at least some effect on them.....