I don't disagree about the in-ground experience being way superior to TV. Not sure we needed Covid to tell us that, and it's not just atmosphere. You can't see the shape of the game on TV because, inevitably, the cameras concentrate on the ball
That said. for the big clubs, huge numbers of fans now seldom if ever come to the stadium, because they live on different continents. We might instinctively regard them as not proper fans, but that is something of a subjective judgment, and from a commercial point of view they are highly monetisable.
Also, the "TV experience" is changing significantly as VR packages become commonplace. Which isn't at all to say they are "the same" as being there in person, but it is significantly different to ordinary TV viewing.
Whether we'll ever be competing against clubs that are genuinely international leisure brands with technological interaction to match, who can say. Next season we shall be playing Mansfield and Port Vale.