The real problem isn't XT. The real problem is that there is no good means to break a serious impasse.
There is no "serious impasse." Bitcoin has just started working more like it was designed to, with RBF and (fledgling) fee pressure/markets.
If there were a "serious impasse" (such that competitive fees no longer properly prioritized their tx, thus endangering the present and future value of BTC), the economic consensus would quickly coalesce around a solution.
If you want to know what Satoshi thinks, look here:
https://twitter.com/NickSzabo4.