Apologies if the video has been posted previously:
I am supportive of the need to protect players, the size increase since the game has become professional has been insane and it is a big unknown as to what these impacts will have at a later date.
However, some of the examples for "accidental" contact in the video above are hard to justify as penalties IMO.
With such tough interpretations, there will need to be extreme sanctions for the inevitable diving that will occur as soon as anyone so much as grazes someone head in a tackle - there will be any number of players ever keen to milk an immediate TV review and possible sanction repeatedly which will cost teams matches.
A two week ban after your team has just won the super rugby final due to a gutless dive to force the opposition's chief playmaker off the field won't do shit to deter diving.
I think rugby have generally been pretty good at balancing the laws to create a bit of yin and yang - but I think the heavy interpretations by themselves are a recipe for unintended consequences.