I think that, if they wanted to let their pvp child first go out there and THEN grow from point zero, they should have done it in a way that is less obvious, to put it that way. I mean, arena DM with very small groups of people battling each other without environment interaction, quirky objectives or mechanics is something even games which gameplay consists of ONLY that aspect often do bad. It's too bare and to minimal to offer any kind of buffer for bad stuff.
If you have something like 30vs30 on a more complex map with some simple objectives and respawning, anything can happen, really. Even the most broken effects won't count as much and won't kill the fun.
They basically selected the most bare and mind boglingly sensitive and balance dependant mode for pvp without thinking basic things through. I think they could go with one of those, but not with two