Sad...isn't it?
I predict Petsmart will create a Trimac description label stating "Max size-6".
Look at their other labels. I confronted my local Petsmart about that once and here's how it played out:
Me: You guys' label says the max size of the GT is 6" and they grow up to 10". Also the they JD, Midas, and Oscar are wrong too.
Employee: What size tank do you have?
Me: I have a 13" Midas and a 10" GT in a 135 gallon tank and have previously kept all of these fish.
Employee: That's the problem. Your tank is too big. If you keep these fish in a 10 or 20 gallon like most our customers do, the max size would be correct.
Me: Bwaaaagh!!