Think they are to a point. I personally don't like the changes in kick offs, know that it is a huge potential but I love to see the carnage, sorry lol!
Baseball and football, it makes you wonder about the increases in fragility and frequency of injury. I think it's because kids start so young and then stay with one sport they just get worn out. Can you imagine an MLB pitcher throwing a 200+ pitch complete game then coming back on 3 days rest to do it again? Interesting