I wish you could actually hold a 4v5 until that 5th got their shit together, too bad it's impossible

Because not only are you stuck in a 4v5 but the enemy minions will ALSO get 20% or more increased damage against yours along with damage reduction, so you can't even breath enough to contest important objectives because the minions will just hardshove to your squishy useless as shit towers.

Because making minions scale based on level difference is a genius plan with no downsides, so glad the savants at Riot implemented this into the game.