Yes, I know this. But, again, portals aren't guaranteed and when they do pop up, they rely on RNG. And sometimes not everyone has 5 maps, but you just wanna have fun together doing maps as a group of friends or an FC group. So it would help in this case if people can have more than 5 maps to compensate for those who don't have many maps on them.
We can spend eternity going back and forth on this matter. My point is that since it's possible to bypass the restriction anyway, why not make the lives of players a bit easier. If this affects the game very negatively in a way that I couldn't foresee or think of, I'm ok with things remaining the way they are, no matter how inconvenient they might be.