Rocket Science isn't all that big of a deal either, I mean, aim a rocket at the moon and launch, coast for a few days ..... and there you are ... .no big deal.
I agree that the mechanical skills aren't that challenging, but there are a number of rules, guidelines, and specifications that need to be adhered to in order to get maximum efficiency out of the cabling system. There is more to it than placing and punching a wire int an IDC or crimping on a mod connector.
Structured cabling wasn't designed just for networking, it can be used for nearly any communication need, including audio, video, serial comms, terminal...
Cabling tends to be one of the least expensive (but most critical) components of a network, yet it is frequently overlooked or purchased and installed "on the cheap".
If the cabling is not right, the system will likely be flakey.
FWIW
Scott