Sketchy is an understatement, that cage and those welds would never pass tech inspection. Couple that with an attitude of willful ignorance and it's not surprising to me that the story ended the way it did. It's unfortunate, but sometimes that's the way of things.
Hell, even when a cage passes tech, that's not a guarantee that it will hold. I remember racing Baja SAE in college and in turn one of the first lap of the endurance event on the last day of competition, Cornell's cage failed where the A pillar meets the roof bar. The following year, all cars required either a continuous tube from the main hoop, over the driver and into the A pillar, or a gusset of specific area between the roof and A pillar. The rule book didn't name the gusset, but many teams just called it Cornell.