We can argue about it all day long, and to a great extent, that's fine. I mean, that's what a discussion forum is for (provided it is done within the rules and not just pointless bashing of each others' opinions). But at the end of the day, there really isn't much controversy.
It all boils down to this: The fan base is far too large and opinions on the album are far too diverse to make generalizations about how "the fans" feel about the album. All DT albums seem somewhat divisive in terms of how the fans react. When we're as close to the music as most of us who post on a forum tend to get, we tend to lose sight of how different from the mainstream DT's music is. There's a lot going on on any given album. So there are lots of reasons why people may or may not like an album. With The Astonishing, the band departed quite a bit from the norm and did something outside the box. So this album is even more divisive than the norm for DT. Nobody can really disagree with that.
But are fans, en masse, boycotting DT and hating what they did on this album? The numbers don't really support that. From an artistic standpoint, I think the album is most definitely a success in that they set out to accomplish something and did so to a level that I think they are, for the most part, completely satisfied with. Was it successful from a sales standpoint? I would still say yes. Granted, it may not have sold as many copies as they would like, and due to a variety of factors, it did not sell as many concert tickets as they would have liked. I get that. And the band gets that. But they still had a lot of happy fans at shows all over the world, and they toured quite a bit on this album. And I think that, while the band (and JP especially) would have loved it if TA became the band's most successful album to date and would have received resounding acclaim from the fan base, I don't think anyone in the band realistically expected that. But they shook things up, and even if the numbers may be somewhat below expectations, the band still came out of this fine. And most of the fan base that even disliked the album, from what I have seen, respect that the band had the drive and the guts to try something fresh, even if they may feel that the result fell flat.
So, bottom line for me is, while I can understand the vocal dislike of some, I don't get the more extreme statements people try to make about the fan base being divided over the album or the album being a failure or whatever. But, hey, still kinda cool that the band is done touring on the album and we're STILL talking about it.