Is there really a lack of space for companies to advertise on? Seems like we’re opening up more and more room because the biggest companies take up the best 50%

Is there really a lack of space for companies to advertise on? Seems like we’re opening up more and more room because the biggest companies take up the best 50% of advertising space. I’d support a cap on how much one company can advertise on one platform (e.g. only so many hours of ads on television so that everyone is able to participate). That way, we don’t see ridiculous attempts like the headline to open up more advertising space.