Is There a Pressure to Shorten a Song?

Technology has defined music since we realized that sound waves bounce off certain surfaces curved or otherwise more than they do something else. The crooning phase of Bing Crosby specifically, but also Frank Sinatra was a revolution because microphone technology got good enough that you didn't have to yell. If anything, these new trends make people have more of an attention span than they used to back in the radio era when songs were around a minute and a half to change. But if you make a track that's four minutes and 20 seconds long, you are going to be pressured by your agency, by your label to shorten it.