Is a "one size fits all" accelerator right for me?

The accelerator offered a lot of training and programs that I could learn from. But there was also a lot of material I had already mastered and didn’t need to go over again. When I asked if I could get extra exposure in particular areas, they said there was only one program, so I could “take it or leave it.”

This caused me to reflect on whether I wanted to join them. I know there are things I need to learn, but is this the best way to learn them.