I’m not anti-prosumer, really. Personally, I’m a fan of prosumer cameras, their size in particular.
However, if I’m training students to compete in a professional environment, I absolutely insist on having professional tools with which to train them. Someone schooled on a pro camera can puzzle their way through a prosumer variant. It doesn’t work the other way, though.
I suppose I really don’t need HD from that perspective, but spending a hundred grand on SD technology in this day and age seems… wrong.
The difference between theory and reality is that, in theory, there is no difference between theory and reality.