Also long time EASHL player here, agree with everything on this list. I would prioritize the broken gameplay aspects (points 1,3,6,7 above) over the asthetic/streamline stuff as the gameplay just feels bad at the moment.
Things to add:
8- Fix L2 spamming exploit.
9- Reintroduce MMR-based matchmaking. I am not as much a stickler for "match my team size" as others on here, but I do think we need at least a hybrid of MMR-based matching and engagement-based matching. Been discussed in other posts but I think a search criteria that starts with closely aligned average team RP and expands as time goes on is a good balance.
10- Rethink how Pressure Meter works to make it feel more nuanced/natural. Doesn't even need to be a big overhaul. Keep everything the same but completely reset the meter for both teams upon every non-icing faceoff. Will reward Full Pressure more deservedly and reduce instances of like "We just scored...how the hell did they get full pressure after one shot on goal?"