Problem with those tests is they are generic. But they are good for a baseline.
For example, butter ball has several different brands within their line and they do vary. I'm a big fan of America's Test Kitchen. They said they didn't do anything to impart flavor (like brining). And the "look" seemed to be a big rating point. Hey, around my house, no one sees the cooked bird anymore, I do the whole carve out in the kitchen and on my plate it looks gorgeous.
Me, I've done tests at the house over the years and a LOT of turkeys. I think it, like many things comes down to your taste buds. If you have access to the top rated, then give it a try. For me, it's not just the brand, but the % solution and the price per pound.
I'd be happy to cook all those birds with my methods and then see how they rate.
But you are correct, if you start with better you "may" get better results... but only if you follow Turkey101
Just like brisket... does choice matter over select?
Chicken... brands to matter, but it's a fact for growth hormones that affect them for me
Pork... more a function of the age of the pig, some brands just sell big old hogs