That's interesting. I think most references play down the importance of albums prior to the mid 60s and give the impression it was just a way to repackage the popular singles. And the Beatles first two singles went on an album named after their number one hit. Which I thought was the more common practice.It surprised me. From what I can see the shadows, cliff,billy fury and lonnie donegan all released single free albums. Even the tornadoes, with a uk single the first to to top the us charts, omitted it from their only album.
It's possible there were different approaches and the Beatles just adopted primarily the no single on album one. As they were the most famous it became associated with them.
So in fact bunging two singles on their debut actually makes The Beatles look a little remiss. Naughty Beatles!