Yes, it does look effortless like the rest of his game. However, if you notice, he takes the shuttle quite low on his bh clears and drop.
On whatching the match, LCW was able to attack most of his bh clears and step in on his bh drops to put pressure on. I think SWH is not a player who struggles to generate power on his bh, but he seems to lack shot quality and deception on that wing.
After watching the match again, I have to say you're right. But the fact that SWH's backhand shots get attacked so easily by LCW is because he is so damn fast. He can just wait right at the net and get back in time for a possible clear and smash it (even if its right at the baseline).
For the deception, I don't know many players that put much deception on overhead backhand shots. Unless you consider being able to play every shot (clear, cross court clear, drops, etc.) as deception, which SWH can obviously do.
Many players can't do a full court backhand clear in a game situation and then there are indeed a few with just poor ones but imo you don't need a perfect one as long as you can keep the opponent guessing (variation or as rightly mentioned above, to have the ability to play them).
(I could swear there is an exact same topic like this around)
In single match, BH ability is a MUST as it's law of nature that BH side is always weaker than forehand side
Whereas in double, usually BH used in fast-flat drives. Only in grave danger situation, BH clear is used
Maybe if I were to pick some names :
Great BH : Kenichi Tago. Tai Tzuying. Lee Hyun Il
Poor BH : Kenneth Jonassen, Ardy Wiranata
Yes he has. I remember that one. Also on many occasion after tricked by flick server, then goes for the backhand clear, he just rotating smoothly counter clockwise on recovery. JJS and Setiawan's backhand in MD is special