They've done the "lead, don't follow" thing consistently since Jobs came back. Ditching ADB and serial for USB; ditching SCSI for FireWire---I groaned at each one of those calls, but they turned out to generally be the right ones, just a year or two in some cases before the market was quite ready.
However, all that is quite different from the bullshit with the iPod video cable discussed in the article. That's just outright consumer-hostile behavior, and it's not traditional Apple ... it seems to be something new, which has only started to happen in the last few years, and mostly in the markets where they are dominant.
I still like a lot of Apple's products (I'm writing this on a 15" MacBook), but it's as much evidence as I need to not want to ever have Apple dominate the PC market. They're a wonderful company when they're the underdog, but a harsh mistress when they're in charge.