Yes, it's an artificial bone of contention manufactured by remainers and the EU to make the whole process of Brexit unnecessarily troublesome.
The so called solution to this nonsense is absolutely byzantine, and I cannot see how anyone could read it any other way (unless of course you are a remainer, an EU bureaucrat, Treason May's, or one of her lackeys).
Tying Northern Ireland to Southern Ireland, two distinct jurisdictions, and putting a border between the mainland and Northern Ireland down the middle of the Irish Sea, is stupid, complicated, treats one group of UK citizens differently to the rest in terms of the constitutional outcome of Brexit (at the say so of the EU, plus nobody voted to split the UK from itself), and looks very much like a partial land grab by the EU.
The default position in the case of Brexit, is a border between the UK and the Republic of Ireland, further if the Republic of Ireland are unhappy with this (the people in the UK have already signaled through the referendum result that they accept this inconvenience), and wish to maintain the free flow of goods and people with the UK, then the only democratic and fair solution is to give the people of the ROI a referendum to choose between this, or remaining in the EU.
The narrative that has been painted by the pro-EU media and politicians, on the other hand, completely misses this point (instead we get incredulous nonsense in newspapers and hot air from mincing politicians wringing their hands, claiming how difficult this all is), and belies the unfair, underhanded, authoritarian nature of the thinking behind the EU.