MSA rollcage rules forbid you from passing anything inside the cage - theres probably a good reason for that.
MSA rollcage rulls also insist that the front stays either form a continous hoop (passing over te top of the windscreen) in their own right or a continous piece up to the joint with the main hoop - theres probably a good reason for that too.
MSA rules also don't allow bens made up of multiple pieces welded together - theres a reason for that too.
Looks to me like a typical piece of steering wheel substitute engineering - if you make it tough enough you don't have to steer cos you can drive through everything. If its purely a snorkel he's way over complicating matters and over engineering, if its meant to act as a rollcage too then rather him than me.