There were some fans, (including myself) who started to come around to Enterprise during that last season as the writing and storytelling definitely started to get better by that point. The Cold War was jettisoned (Though I wouldn't have minded maybe if that had come back a season or two down the line if Enterprise had lived to maybe have Archer and crew having to have to set the timeline right in order for the Federation to exist), and there was definitely an arc towards, more than likely the Romulan War rather than the signing of the Federation Charter. Then came the Crap finale Berman gave us and drove a lot of the fans who had started to come around into the "Enterprise does not and ever will exist" camp.