As for WP, nope. He just "looks" more HUS to me. I am not a fan of either in their current "fads" as it were, but HUS horses seem more conformationally correct to me. Still have a very low set axis of rotation for the shoulders and hips, making the stride shorter than seems healthy, and the whole peanut rolling fad is a bunch of bull dooky in my opinion. However, as I said, HUS seems more conformationally correct to me.
Did that answer your question?
ETA it is worth noting that any horse on long, spindly, narrow-based legs is going to have a hard time balancing; something I notice a lot in WP and HUS horses. This is evident in the elevated movements made to transition in gates or change leads, etc. Paired with (in WP) the practise riding the horse with its face tipped into the rail to keep it slow, and you have a pretty unbalanced beefcake on toothpick legs ;)
That being said, I think this boy is just marvellous and can become quite well balanced and forward. :)