No matter how many threats they make against ECAF it doesn't have any effect. If the case is not a dispute over certain articles in the constitution, ECAF can't do anything about it. ECAF simply doesn't have the authority to make those rulings.

If ECAF makes a ruling that's clearly outside of its jurisdiction, it will be immediately noticed and ECAF's indepencency will be seen as compromised. Until this has been dealt with, no rulings from ECAF will be taken seriously.

If ECAF/EMAC are named as the sole arbitrator on the protocol layer

Protocol layer = the constitution. ECAF can't do anything about things outside of the constitution.

then they provide the access for states to make these kinds of requests.

Please, write down the whole case like you think it would go. Then you can see it is practically impossible to happen in real life.