I don't think it's ironic. I think it's Monte's point: 3.5 is enough change to be considered more than a revision, and not enough change to be considered a new edition. Somehow it puts you like in the middle of the road: if you don't buy it, you're going to be left behind for further products, official tournaments and community support (surely someone in WotC's forums will scorn off questions about 3.0 as "outdated"); if you buy it, it will cost you quite some effort to upgrade your campaign.
Monte's concerns are honest and serious, IMHO. As well the concerns of all the people in this board. A lighter revision would have had much a lesser impact on existing gaming groups: obviously, if it was really that light, there would have been much less profits reason to do it at all for WotC. A clearly new version could have put the gamer in front of the fair choice between two games: I know people who still play 2ed in one party and 3.0 in another, and they love both. It might be more confusing if you play in a 3.0 and a 3.5 group.
3.5 being somehow midway (I think the name says it all) will certainly see most of the groups find their best compromise between 3.0 and 3.5, but few will stick completely to 3.5 IMHO. It's possible that I am wrong, and instead a lot of people like really all the changes, but in my experience the vast majority of people of this forum have always used house rules, and I can't believe they will stop using them. If this is so, 3.5 is quite effectively a bunch of variants, only averagely better than 3.0 but not nearly as completely. Which I guess will possibly shorten the time before 4ed.
For myself after all it won't change much, for the same reason: our current DM has his own HR and uses DM's call A LOT, and too much IMHO. But the above is still my sincere opinion.