It depends upon what you mean by "problem".
Is it more prevalent? Absolutely.
Is it a problem? Well, not in my games., I am specific in my pre match to the captains that I will explain, but I won't debate and I won' be told what I have 'missed'. First appeal, penalty. Tends to be the last.
A lot is weak captaincy. I had an outstanding young man as captain today. He listened to me, he worked with me, and took care of most of my problem before they became problems. Trouble free, and a joy. Coaches, too. I notice the teams who have coaches who concentrate on, well, coaching, are usually low-nuisance. The noisy coach who is making every call during the game? 9 times out of 10, there's going to be an issue in the game.
Part, as alluded to upthread, is societal.
Yes, I do believe that the TV coverage of the Elite game exacerbates the issue, but isn't the root cause.
And I'm going to put this out there - weak referees who allow it. If every referee, to make a ridiculous statement, penalized every appeal for just two weeks, people would shut up in a hurry. There are conflict averse referees, much like yourself Brian, who will allow it, or will try to 'manage' out of it. Doesn't work, and simply perpetuates the issue for next week.