chas ... fully agree with you on the injuries ... and today's players are bigger, stronger, faster which makes some 'hits' even worse ... and players who demonstrate a propensity for bad hits should be dealt with harshly - even banned - ...
I also wonder what the affect of artificial surface has when a players head hits the ground ... I know a frozen field is also bad, but I would think the number of games played on 'frozen' fields is relatively small ...
BUT, I still think that some calls are made too hastily ...