Yes, that was always a conundrum for me.
Do I put all my North American Aviation P-51’s under that, or do I have North American Aviation P-51A, North American Aviation P-51D, etc… I always chose the latter, which could be done with the Hawker Hunter.
But, yes, your organization is just as valid.
(and then you also run into the problem with, some people call it North American Aviation, some people call it North American, etc. etc. so the same plane ends up being a different plane, and I throw up my hands, lol)
To me, putting all the Hawker Hunters under Hawker Hunter means I need to make more clicks to get to the plane I want. Take the de Havilland Beaver for example. All the Beavers are under a single model tile. I liked having the wheeled beavers as a model tile, and the float beavers as a model tile. Because I tend to fly the amphibious Beavers more than the wheeled Beavers, I liked having them readily available.