The RT-AC3200 is an oddball. It's based on an SDK version shared with no other models, and it's not a flagship model either, so it gets less frequent updates from Asus.
I don't see why that would be a mistake. Routers are purchased to share an Internet connection and provide wifi. If it works properly, then it's doing it's job as expected.
Yes but if I have less update or support because of what you said it's a bit frustrating since I paid 400$ for this router ...