Personally, I dislike the rule. Firstly, special team is a key part of several people's jobs. For a lot of a roster, they depend on special teams to stay on the squad. This hampers that. Secondly, I'm someone who, as a former kicker, likes the kicking game. But, the return game is fun and it's because it just takes a few missed tackles for a TD to happen. This robs that from happening to an extent. Finally, I think this is, to an extent, an overblowing of player safety. Yes, player safety is important, but this is a bit of an overcorrection imo. Especially when you watch how kickoffs in rugby and Aussie Rules are done. In rugby, there is no fair catch.