> It is like asking a Carpenter to build a cupboard and thinking he's unqualified for the job if he's only ever used Craftsman screwdrivers because that means he can't use Husky screwdrivers.
I get what you're trying to say and I agree 100% it's foolish to make hiring decisions primarily on having X years experience with Y technology but let's not pretend all technologies are as interchangeable as a Craftsman screwdriver vs a Husky one.
Just because someone has a lot of experience working with wood doesn't mean they can do anything with wood well (at least not without sufficient time). You probably wouldn't want Antonio Stradivari to build you a house or Bob Vila to make you a violin.