Man, someone downvoted your post.
Honestly, this is a huge problem. I hate seeing AP champs bot lane because they end up just doing more in general. One thing this allows for is an AD JG and Mid laner at the same time. Normally, to have a balance of Damages, you would normally have an ADC botlane meaning that the support would usually be AP. With that, Mid or JG would have to be AD or AP respectively, leaving top to normally be a tank.
With an AP botlane, you can have an AD JG and MID at the same time without sacrificing mixed dmg. There are a few exceptions to this and most players in low elos don't care about mixed dmg. This COULD be good, but there is more of a chance for it to go negative as the opposing midlaner could rush some armor to survive ganks and trades.