The idea that "Macs aren't for technical people" has been dead for years. The same tired arguments are what led to resistance to iPads and iPhones in enterprise when they appeared on the scene as well, they're just poor excuses. Too many IT people wet their pants at the idea of something they need to manage that doesn't show up in Active Directory, fortunately they are a dying breed.
this really, there are some* printer monkeys out there whose training/education has been a paint by numbers approach of vendor certificates and following set routines in their day to day work, they tend to be averse to change and/or anything that might require them to use some initiative or do things that they don't have written instructions for or some spoon fed training course to cover
(*to be clear and not wanting to offend people I do need to emphasise the "some" here - *not all* printer monkeys)