Not quite the same thing. FMJ has lower expansion rate than hollow points. Once a bullet expands, it has a larger diameter and that increases resistance and transfer of energy but first it has to hit the target. Both FMJ and hollow point of the same mass and with the same charge is going to have close to the same energy when it strikes the target. They hit with the same force. It's what happens after they strike that comes into play and that's from increased resistance, not higher force.
For instance, I'm thinking hog again. Boars are notorious for developing thick gristle sometimes called a shoulder shield. You want a round that punches through that. A round with too much expansion may loose too much energy and not do much damage. You want to be able to get through that. OTOH, you can have a round that doesn't expand at all, and that's no good, either, as it doesn't transfer as much energy to the target and makes a smaller wound channel. You want a round that expands, but not too fast.