Purley my opinion and no offence to anyone:
If this is attempt to balance the game, then all abilities should be banned. Otherwise this looks like adjusting the game in favour of one part of the community.
Banning all abilities would give the most competitive and balanced game in my opinion...
While I do agree most of the abilities are OP, but that's why preparing for games involved a little more thought to it to decide how you should play against different opponents. It also kept everyone 'on the edge' facing gold BigTipper or Truculence and teams had to adjust their defensive/offensive strategy. That made teams leave their 'comfort zone' and actually sweat playing weaker side.
Example: If my team, as an underdog, facing a lot stronger side decide to play defensive game clearly knowing our only chances to grab a point or win are using counterattacks and a lucky big tipper in front of the net then we would use this strategy. Now with new restrictions this option is eliminated.
Example 2: If my team, as stronger side, facing an underdog with mentioned abilities we had to rethink how we will play and quite often these were close games where we had to adjust our gameplay which always brings more excitement to the game.
Anyway, good luck in the new ECL season!