I love Converge but you have to be in a certain mood to listen to them. For instance, I have 5 Converge albums but while they are all very high quality/amazing records not a single one is on my iPod. These new bands you speak of are often excellent in different ways. Many of them have more traditional song structures which are simply easier to listen to when working out for example.
Converge are my favourite band, and I can listen to them at any time in any mood. But I can see how many wouldn't be able to handle them at times. They aren't entry level hardcore (even Jacob Bannon himself says this in this http://www.youtube.com/watch?v=mRGC94_pxqE
interview), they're a band for hardcore fans more tolerant of the more extreme aspects of the genre.
That said, its amazing they still put in their all to make it to the show even with Nate's condition. That alone would've put them above most touring bands today. The fact that they still put on a devastatingly powerful set pretty much puts them above any touring band in hardcore today.