Their original fanbase is in their thirties and most probably don't listen to Braid anymore. It's nobody's fault the band isn't huge within the scene anymore; losing relevance happens to everyone.
I know this, but there are plenty of bands who's original fanbase is in their 30's and still sell out shows. Probably too many to name. Nowadays bands playing the same sound Braid and others helped get noticed draw probably double the crowd they do now. It's just a sad time in music.