Yes, the Chinese straddle bus is back. “Back” because you read about it here six years ago. A wide flat vehicle that spans the travel lanes of an expressway, so that cars can drive under it. As I observed back then, its most interesting feature is the way it collapses what little remains of the difference between bus and rail.
And yes, if your starting point for urban design is that single-occupant cars, despite their extreme inefficiency in using scarce urban space, should be allowed to go anywhere at all, and that the surface plane should be designed solely for their convenience to the exclusion of all other citizens and needs, then this technology makes sense.
Remember, the primary cost of transit infrastructure is the cost of keeping transit out of the way of motorist, on the assumption that motorists have the prior claim to absolutely every bit of public space in our cities.
Meanwhile, Cap’n Transit has the best parody. Not that I don’t take this seriously, at least as a scalpel for prying open the deep assumptions of infrastructurism.