Good review with a justified score, felt the same about ARMS at first as I thought wtf is this but after playing it for a while online I came to really like and pre order it
I too think that Nintendo is pushing the motion control use a bit too hard and not having the ability to freely map the buttons(blocking omg) is a testament to that. I found blocking rather easy on the joycon grip though, it's much more of a hassle on the pro controller as that one has an actual analogue stick that deserves the name.
I fear Nintendo will lose some customers just because of their ads being focused solely on motion controls, I also bet the tournament at E³ will likely be shown with motion controls only too.