I have knockoffs and I ride in them ALL THE TIME they are great in winter and super comfortable to wear
I have the knockoffs (Dublin’s) and I ride in them all the time. You can’t put spurs on them, but they work just fine if you are hopping on for a quick ride. It’s so much easier because then you don’t have to change them, and they are much comfier than tall boots.
I have my dubarry boots for 5 years now and they are still perfect for rainy show days 😉 I don't ride with them, but it would be a good for them to create boots of the same quality but adapted to horse riding!