My question is one of whether the RAW will allow a Wild Mage to *intentionally* generate a WMS if she wants to.
That's what the spell Nahal's reckless dweomer is for!
One of my favourite characters I have played (which is not many, usually the DM) was a 2nd Ed human wild mage, I was addicted to casting the above spell (easy to convert to 5th Ed), and now that you can accidentally summon a modron, well, that is just icing on the cake, yay, modrons!