To answer the bolded question first, obviously, in a live experience, that would be very, very apparent. I was just saying that the broadcasters have done a decent job of limiting that negative exposure, but I'll give you Leverkusen's poor atmosphere. Now that you mentioned it, I remember several matches where their crowd gets quiet, and that seems to affect the whole team, too.It's just bland in comparison. Like for example Frankfurt have a large traveling section and they are just going non stop, they can take over stadiums and that also makes the other side more active. Then on the other hand you have your average plastic club, whose fans can't even buy out all the away tickets, you hear them when their team is doing well and the rest of the time they more or less shut up. The atmosphere is just more vibrant when two proper clubs meet each other.
And visually it of course makes a big difference whether there's 30000 people or 50000 to 80000. I mean if someone offered to take you to a Leverkusen against Dortmund fixture and you could choose whether the game is in Dortmund or in Leverkusen, would you have to think for a second what would be the better experience?
With that said, I wouldn't say that every plastic club suffers from that. Leipzig have a great home crowd, for example, and it shows in the broadcasts. Hoffenheim have a decent crowd, too, though I'll pay more attention to them as the season goes. On the grand scheme of things, though, these clubs are able to remain at the top and somehow not be restrained in their spending, though we must give credit to them for not blowing their budgets like, say, Hertha Berlin do. Unfortunately, I don't think any of them have really grown except for Leipzig, who've benefitted not only from the regular CL exposure but by being branded as one of Bayern Munich's biggest challengers. I don't remember such narratives lasting as long for a club like Wolfsburg, which actually won the league title with an amazing front 2. Heck, they even had Julian Draxler and Kevin de Bruyne afterwards and still struggled to gain more exposure.
I go back to this because, overall, outside of Bayern Munich and Dortmund, no other German club has really gotten that worldwide exposure. Leipzig are the only club that's seemingly breaking through. Personally, I think the Bundesliga should do a way better job of marketing some of the other clubs and not just putting them aside for the Big 2/3. I look at much of the Bundesliga advertising in both the U.S. and Canada, for example, and they just seem to focus on Bayern Munich (Davies + American players + prior worldwide exposure), Dortmund (Reyna and Pulisic before him + exciting young players), and Leipzig (Adams + exciting young players).That's not happening, but its not happening for anyone in the BL. Why that's the case I think should be the question before blaming Leverkusen and Wolfsburg, and now also Leipzig.