Yes. Much "simpler" choice to destroy your small compact tractor with. Go rent a machine, you will be mad and blaming RK if you destroy the tractor with a 3 point hoe, and it's not RK at fault... it's the ID10T algorithm making decisions.
I used to tell my kid.... the last 10,000 people that tried that failed/broke it/got caught.... what makes you think your any different?
A sub-frame mounted works so well on these tiny machines because the sub frame spans at least the majority of the main machine frame, essentially the tractor is riding the sub frame and the hoe is riding the sub frame. So the sub frame takes the loads/abuse/stress and the main tractor frame is simply going for the ride as you are jerking/pulling/slamming the backhoe.
A small compact tractor 3 point is simply not designed with the ability to survive what a small/weak backhoe can give it.
For a short time? Sure. Long term? See statement: The last 10,000 people that tried it.....