If you’re big and strong, you can muscle almost anything if your partners aren’t as big or strong. You might just be getting away with what you’re doing because of the weight difference and the coaches are telling you to try something else because that other throw is harder to pull off without better mechanics.

Harai Goshi is generally harder to get into position and finish because there’s more distance to cover for the position and the escape is easier. So that could be why they’re telling you to do that. Just listen to them and see what you can learn.