Ah interesting to read another perspective. I like how he comments under the article that he's too scared to post it here on head-fi. :)
My first impressions of the M100 were slightly aligned with his points in that I thought the bass was quite intense and the mid-range lacking occasionally on some albums. Since then, I'm not sure if it's just me that's adapted, or the fact that I always listen through my lovely Leckerton amp now, but I've grown to like the signature more and more. At this point I absolutely love it for rock - the new Soundgarden album sounds wonderfully satisfying on the M100s. There's certainly strong bass, but it doesn't detract from the clarity of the vocals and other instruments. It sounds great. My other cans include the Denon D2000 and some Grados (SR125 and RS1i). At the moment I would say that the M100 outperforms them all for it's price.
I've been finding this as well, I've noticed that the more I stop 'listening' to the bass and start 'feeling' it, the mids and detail arise out of the depths and I have a LOT of fun. However, mentally focusing on the bass does overwhelm the rest of the elements, especially on songs like 'Thinking bout you' by Frank ocean and pretty much all of the Alt-J album. To put it another way - It's hard to think polyphonically with these headphones.