Sindhu is World Champion and multiple OG and WC medalist in the best ever era of WS. LZJ has won one tournament.
Or maybe it's because WS is a different discipline where height and smash are comparatively way more useful than in MS.
Tall is a trick? And I don't think her smash is the best in WS. Try best retriever and disciplined hard worker. LZJ is a great talent, if only he had the same discipline
Tai's best chance to win a medal is this Olympics. So... Calling a World Champion, a one trick pony , is bizarre and amateur for a badminton fan to comment.