Disclaimer: I'm a staunch remainer.
But, consider a divorce between a married couple. Both have lawyers, striving away and determined to get the best outcome for their respective clients. Would you not then suggest that a deal such as the one May has carved out which leaves both Leavers and Remainers bitter to be the best of both worlds?
In the eyes of Leavers May's deal is not actually 'leaving' - in the eyes of Remainers May's deal is just a 'reduced for sale' knock-off version of what we already had/have.
I am being slightly facetious as of course I don't equate the nation's biggest constitutional change in decades to a divorce petition based between a couple who most likely grew apart because someone left their cup on the counter and not in the sink.