Caution, incoming rant....
The way I see it, part of the problem is 'genrefication' - give something a name/label and it becomes easier to stop seeing what's possible; just follow the rules and wahay you have a 'house' track, a 'jungle' track....an 'idm' track. Yeuch! There is a lot of this going on - this is partly why so many 'idm' releases are disappointing. This is why 'drum n' bass' was the victim of it's own success. Words are useful, just don't believe the hype. What was/is nice about groups like Black Dog and Autechre is individuality, personality, uniqueness and freedom, more than just style. Arovane? Markant? Gimmik? All talented folks obviously, but perhaps a little blinkered, cynical or in too much awe of their predecessors. Come on guys - be yerselves!
Also, it's not really fair to ask artists to keep on making the same music. That would be boring and you'd be doing yourself a disservice too. Naturally many experiments fail, but without them there would be no progress. And sometimes it's hard to spot the successes straight away. I'd like to think that 'idm' (as opposed to 'dim'? - doin-it-for-the-money?) is the music of 'early-adopters' - those that are willing to assimilate new forms and styles, those that relish the unexpected. Please don't get bogged down in how good 'Scoobs' was or some such nonsense. If it's really that bad now then move on to something else, or look harder for what is good and what is emerging. Don't forget - there has always been a lot of crap around, and a lot of great stuff that gets passed over.
Of course, the music continues to evolve and outgrow it's pidgeonholes, which can only be a good thing. Personally I think that the words 'Intelligent', 'Dance' and 'Music' are all complete misnomers for what we are talking about here. I would call it something like inovative electronic sound creation if that didn't sound so horribly pretentious. Beware the dreaded genre!
IDM is dead. Long live ???