Red Faction have been great; they have improved the atmosphere and, at times, made some socially responsible comments. At others (the Newcastle takeover banner for example), they've let petty football rivalries tarnish that.
I think initially they were regarded as wannabee hoolies. By and large, they've disproved this. However, if being an ultra begins at doing things the club doesn't want you to do, e.g. fireworks, I can live without it, and so can the club.
A good atmosphere is not so important to me that I wouldn't sacrifice it to get rid of stuff like fireworks. 95% of the matchday experience is on the pitch. RF should be careful not to flatter themselves that they're that important to most fans matchday experience, or they'll lose the support of many fans.