My biggest issue with all of these big hits is the amount of body armor that players get to wear now. Every hockey player is completely covered with hard plastic. There are several cons to all of this:
1) Players have no fear at all to block a shot because it won't hurt. Nobody likes watching games with boring teams clogging up the slot and blocking everything that comes to the net.
2) Players don't give a shit about throwing their bodies around like wrecking balls because they don't feel anything. I guarantee if they were wearing much softer pads then they wouldn't be throwing a lot of these hits because it would actually hurt themselves as well. They would be more likely to throw some hip checks or just push people to separate them from the puck. Remember why body checks are allowed? It's to separate a skater from the puck and not turn their brain into liquefied jelly.
I'm just getting tired of seeing these huge hits where there is incidental contact to the head and everything is fine because it wasn't the "principal point of contact." It's ridiculous. If they suspended every player that hit somebody in the head incidentally, then players would make a more concerted effort to make a clean hit to the body like they are supposed to do.
I agree with you on the point about body armor and the hits. However, I'm not too sure that it's possible to eliminate head contact from the game completely due to size differences, players positioning themselves low and the fact that with bigger hits, there's usually some form of head contact. I'm not even sure that the head contact mattered in Eller's case since people are speculating that his head hitting the ice did majority of the damage; fairly sure you can see him go down face first unless I've been looking at a bad angle.
On the subject of making an effort to make the clean hit I present to you Exhibit 1 of what not to do:
