Perhaps, but is there a shortage of really well performed recordings of ANY Mahler symphony? Not really. Besides, his CSO M6 may be well played from a purely technical standpoint, but it's also not the slightest bit frightening or "expressionistic" in the classic German sense of the word. It's just long, slow, and sometimes pretty.
And, on top of that, because of the rather wide but shallow stage in Chicago, the trumpets sound as though they make little or no distinction between mezzoforte, forte, or fortissimo. It's all just equally loud, and it often times buries tons of woodwind and string detail. Their woodwinds and percussion aren't the best by any means either (listen to the horrendously out-of-tune clarinet shriek at the very end of the first movement on Haitink's CSO M3). So far, it's been an incredibly disappointing series.
