I mostly agree with the article, but find it funny how live music is lumped together as a whole (ok, some seperate it into "amplified and unamplified")
There is just as many factors that affect how good live music sounds as there are affecting reproduced music. The acoustics venue, the skill of the performers, the types of instruments used, can all make the sound "bright", "warm", "musical", "analytic", etc...
If you listen to a piano recording made on a bachstein piano, and played it on bright equipment, it will sound like a Yamaha. But if you're listening to a recording, you have no idea what it "should" sound like, and either version could be the right one for all you know...
In the end, listen to all your recordings on all your equipment, and get what sounds best. Who cares if its "neutral", "coloured", or whatever's politically correct for audiophiles...