With a little care the idea could have been carried out in a much cleaner fashion. Much like was done with 3/16" tube on the old "Y" block Fords or the 216 Chevys. Those engines suiffered from horrable oiling on the top ends. Maybe this "artist" was an old Ford guy and he trying to fix something that wasn't broken show off his hose making prowess.Yes, I presumed it was a workaround to avoid a leaking head gasket at the o-rings. Crazy amount of work involved.
The cam journals do just fine with the normal oil supply. If this was intended to get more oil there (those are big hoses), it seems pointless. And expensive.