I was thinking for a long time that face punching would be the thing to make WTF rules sparring exciting again. However, today I watched Kyokoshin (sp?) Karate sparring which also doesn't allow face punching & it was more interesting to watch than WTF-rules. Because they both punched AND kicked.
Getting the hands engaged in the match by either needing to block, or punch (ideally both!) seems to be what needs to happen to make WTF-style interesting again. IMO. The way it is now, any untrained person would find it hard to get into because the natural thing they'd think is, "they have hands, why do they use them for....something?!"
I've seen the evolution of Olympic style TKD since the early 80's. I remember when they threw punches (& got points for it!) & bounced a lot less.
The way it is now, the most interesting thing about matches are encapsulated in 5 seconds blurbs on Youtube. Whole matches aren't featured because the whole match isn't that interesting.
The kicks are only part of the Art. I want to see more of the Art that I love....not less.