You seem to suggest that all priests do what they are supposed to do 100% of the time, and the laity should accept it no matter what. The purpose of EHMCs is for “extraordinary” purposes, and if some priests are abusing this allowance, the laity have a right to call them out on it. The same goes for bishops, as some bishops are not faithful (some even downright in opposition to) the rubrics of the Church. I will remain obedient to my bishop, but if he’s wrong on something, it would be my duty to point it out to him.
Let’s say your priest decides it’s OK for him to wear shorts and a T-shirt to Mass. Should we still be able to trust him to make those decisions for himself? Or for a more apt example, if a young, healthy priest is saying Mass and only 3 people are in attendance, would you not question him if he still used an EMHC just because he could?