Neither of those change that someone who decides to jump from light sparring (or either of these versions) to knock-down has an immediate (and brief) advantage, because they know they can just wade through what you're doing.In stead of light contact sparring, you can have 2 options:
1. Full powerful punch on your opponent's shoulder.
2. Full powerful punch next to your opponent's face (into the thin air).
IMO, 1 > 2
Even in wrestling, we still train full powerful striking on opponent's arms. This way, people will not ignore the striking.