I agree with you.
My Branson Marriott studio and one bedroom does not trade as well as my ocean point or BeachPlace Tower studio and one bedroom. Both are platinum season reserved high TDI weeks deposited.
There really are 2 ways to look this, technically and practically. This issue has come up a few times since I've been routinely back on the boards here. If you get what you want then it really isn't an issue but in reality you don't know what you might have missed with even a modestly lower trade power, esp when trying to upgrade (size, season, resort quality). While things could have changed with II recently, as of a couple of years ago they had 2 general qualifying principles, trade power and resort quality and once determined, they worked somewhat independently. In some cases you might have the trade power but not sufficient (or too high) resort quality and you wouldn't match regardless or might match much later as they eased up requirements as the dates get closer. In the past II has had 2 internal resort quality rating systems that were not public, an ABC and a % one. Of course none of us have the actual information or likely know if they have made changes with the points, short stays and upgrade charges. I personally feel the technicalities are more important than some here do. The difference in a trade power of say 17 vs 24 (using RCI's TPU system as reference) likely won't make much difference for most things but it will for some things even with the internal MVC preference, esp when trying to upgrade size. That's why I'm skeptical about the touted trading for GC or Williamsburg, while it likely won't go the way of South Africa, I do think it'll make a difference in some cases even if only the speed at which you match.
If only they'd standardize the TDI so that you could at least compare trade power, you can guess at resort quality with the other info out there. That's why I sold my Harbour Pointe week 35, it didn't trade very well to higher end resorts further out. IIRC I got MGO with it twice, once online about 6 weeks out and once on a priority search when they "accidentally" cancelled my search.