Can a plow be mounted on an E ?? In fact it can. There is a suitable mounting method, that will not set off the air bags!!!
Is it a good Idea to do this with an Element? NO .
Mounting a plow on any vehicle that does not have an independent frame, Is a bad Idea.
The uni-body model is prone to being twisted by high loads on one side. That leads to distortion in the chaise. It would manifest itself in doors that will not line up, and close properly. That would be your first indication of major trouble with alignment. Not just steering Alignment, but frame alignment.
If you intend to plow snow, then go for something with a heavy frame.
Dom