An induction hob with a single ring/burner takes anywhere from 1.3-1.8 kWh of energy. It's almost impossible for the type of person that would benefit from a rocket stove to have access to a solar setup which could generate that much energy. Moreover, most of the time these families/individuals are impoverished enough and/or live in places with bad enough infrastructure that even gas for a gas stove isn't available. In these situations, biomass rocket stoves make the most sense.

(Cooking actually takes quite a bit of energy unfortunately and is probably one of the hardest human activities to make carbon neutral. Luckily there's a lot of low-hanging fruit to tackle first before the question of cooking efficiency comes up.)

If I were someone who would benefit from a rocket stove, I'd likely sell the six solar panels and the induction stove and use the fantastical amounts of money I make that way to pay for my children to get an education.