You actually know this or are just very confident in your opinion?
Lol, I don't think Ford is worried about competing with the Rebel. And since the F150 will have a power boost option, it seems very likely the Raptor will have that as well. I don't think Ford wants customers selecting a Lariat over a Raptor because the Lariat has more power.
It wasn't a speculation, I've had firsthand experience with the engine. Not saying any more about it.
I think it makes sense to compete with the Rebel still. Only offering an $70-80k truck makes raptor ownership much less attainable for the average person and offering a lineup of trucks makes them that much more appealing. People like having options.
The powerboost stuff is neat but I'd be surprised if they implemented it into the raptor, it's a lot of weight. But it's going to change how trucks with be used going forward. The powerboost system puts 4 120v and 1 220v outlet in the bed of the truck. There won't be much equipment that can't be operated from the truck. Gone will be the days of portable generators.