The first vid shows Hoofdvan ramming. For what looks like a ram to be a block, the perpetrator needs to be ahead of the victim. The perpetrator needs to move into the victim to block them and stop them from passing the perpetrator. "Ramming to protect his position" is blocking, but that is not the case in the first vid. If you ram to get ahead (which is what he did in the first clip), ram to take someone you're side to side with to take them out and make that position yours, that's legit ram. Ram when you're ahead to block someone faster from moving ahead of you and "protect your position" is blocking. That's what happened in the second vid. Clear block.