Did he? Where? If so I'm impressed by his honesty, not that he's been known for not being very honest and forthright in his opinions!
There are probably multiple posts where Jeff has discussed these issues. The posts that I had in mind, were (I think) on the Adobe forums, but here is another Jeff Schewe
link where he suggests doing capture sharpening in ACR 4.1 or greater. He further stated that he does his output sharpening in Lightroom (rather than PK Sharpener).
I would think that such statements by Jeff would tend to diminish sales of PK Sharpener, which he developed along with Bruce Fraser and some other colleagues. While the enhancements in ACR and Lightroom sharpening may diminish PK revenue, I would imagine that his consulting fees from Adobe would compensate for the loss. As I understand things, Bruce and Jeff were hired by Adobe to incorporate the essentials of PK into Adobe products. Capture sharpening is available in both ACR and Lightroom, and output sharpening is now available in Lightroom. Besides offering an integrated workflow, the Adobe extensions are parametric editors, which eliminates the necessity of storing multiple layered intermediate files.