Having read the Hardmac article, and these other two;
http://macsoda.com/2010/09/05/final-cut-studio-4-the-inside-scoop/
http://www.philiphodgetts.com/2010/09/final-cut-studio-4-the-inside/
I believe the only real conclusion that can be drawn on is What Has Apple Done, not what do we think they are doing.
First, having worked numerous large companies of Apple's size and having managed and worked on projects very similar to FCP, it really does not take a rocket scientist to figure out whats going on.
1) Development projects of FCP size "should" take about 2 years between major developments. You should be able to release perhaps less than that if you figure you have some redundant teams and the lead work on a new project never requires the entire team to be present at the beginning and at the end your already pulling resources off.
2) The last Major release of FCP was around June/July of 2007 if my memory serves me correct with nothing more than a band-aid-fix around July of 2008. If you figure the "Next Major Release Project" of FCP should have started around 6 months BEFORE the last major release of FCP, which was July of 2007, that means they should have been starting around Jan of 2007.
3) It's now been almost 34 months since that "Next Major Release" project should have been started and we really have nada.
4) Clearly Apples priorities are iOS4, iPads and iPhones. ProApps was important 3 years ago. Apple's business world has changed and now ProApps is simply a resource pool from which to pull engineers/designers at will to support the most important revenue product.
For me, the only thing VERY, VERY clear, based on Apples business model (which, I actually don't disagree with in the slightest) is that if anyone thinks that somehow item number 4 above is going to change to the benefit of ProApps, they are smoking rope.
I've made my decision. My main application I use in my work is Maya. I use to use it on a Mac but quite frankly got sick and tired of the pissing contests between Apple and Autodesk which centered around crap video drivers on the Mac for Maya. You have only one magic configuration that works and if you happen to upgrade something to make FCP work or something else work I ended up screwing up Maya. Plus, you want to back date a video driver on a Mac ? Have fun. It's format your hard drive and start ALL over again. On Win7 I go to nVidia's website. Get the driver I need and 10mins later I'm good to go. For the total amount of video editing I do PP will work fine for me and it simply screams on Win7 64bit with my Quadro card. FCP on my MacPro, "Oh, you want to just slide this HD clip vertical and not even change its location in time...... go make some coffee and run some errands and I'll let you know when I'm through". Sorry, completely sick and tired of that crap.