If all you're looking at is HP though, it makes more sense to compare base Raptor at $60K (or whatever) rather a loaded Raptor at $75k. None of that $15k is going towards the engine. So you're paying $15k for the extra HP of the TRX...is it worth it? It's a stupid question because no one really buys a vehicle for the HP alone, even your family member. If you just wanted the power, you would just buy the engine alone (taking it to extreme)
I didn't take the comment to mean the vehicles were identical. The point was that base model for both truck model was the right place, or best place, to do comparison. Obviously, everyone is going to add options depending on what priorities matter to them most, but base model seems the most generic.
That comparison only makes sense if someone has a $75K budget they are trying to stay under. The reality is that if someone is interested in the upgrade goodies for a Raptor, they likely want the same in a TRX, and would pay the extra for it. If you want the extras, the likely case is that you can get a load Raptor and save $10k (or whatever) or you can get the loaded TRX. Yes, you can get the base TRX and save the $10k as well, but few are going to go with that option. We see the same think on the Raptor, it's why dealers don't keep many base models in stock.
I would think your family member is more of an exception than the rule. Few people are going to prioritize HP well above cost and every other aspect of the truck to that extent. Since there are no more Gen 2s made, I guess we won't be able to compare sales of loaded Gen 2s to base TRXs out there, but I would be shocked if 2021 base TRX sales comes close to the 2020 Gen 2 loaded sales. I actually wouldn't be surprised if 2020 base Raptors outsell base TRXs.