Perhaps the program didn't fully deliver on providing a lot of value to the company, but that's certainly not unethical or fraudulent.
Your costs are your time for 6 months making a product, and a few thousand dollars worth of AWS credits or GPU's.
That's it - you don't need a big team, special agreements, risk of warehouses/products. You don't need to run a loss-leading service to attract users or pay marketing costs.
As soon as you find the first user for your tech, the signing of that first agreement will immediately make you cashflow positive.
It's the ideal startup, and one of the few types of startup I would recommend self-funding entirely.
And if you aren't going to sessions, why should the Accelerator invest further time and energy in you?