Actually, I'm pretty sure it's less subjective and more representative of what lots of other fans think. Look at what fans have been saying online, not to mention critics as well. If the CDs were good, as a fan, I'd be the first to admit it. But when you're focused on getting hits, the music more often than not is going to suffer.
If I'm attacking Coldplay, you're attacking U2 far more in pretty much every other thread. All I'm stating is something that a LOT of people agree with: that Coldplay could not play stadium gigs and expect to sell 3/4 or even 2/3 of the tickets. I'm pretty sure you'll be hard pressed to find anyone else who disagrees with this.
If Coldplay were truly all about the music and the fans, how do you explain charging $100+ for a ticket that, unless it's close to the stage, is generally quite crappy? How do you explain the safe, hits direction of the last couple CDs? Again, not attacking them, but just pointing out where the argument that Coldplay chooses not to maximize profits by playing stadiums is flawed. If they could, they would play stadiums. They don't because they know it's not feasible.