I can see ftpaddict's point, even if it's a little tactlessly said.
In the PC world, Quicktime really is one of the worst media players ever, possibly beaten only by the execrable RealPlayer. The format is also difficult to play back in other media players without a bit of fiddling. (Here's my vote for Zoom Player as the best media player - small and fast though with a decent-sized learning curve. But that's a standalone player vs a browser plug-in, which is the usage we're talking about here.)
That being said, you can make Quicktime work fairly unobtrusively. During the install, there's a spot where you are given the option of changing MIME settings. Go in there and change the settings (both for MIME, which is what your browser will use, and the file associations) so that QT is used
only for Quicktime files and Quicktime streaming protocol. By default, it loads for every MP3, PNG, MPG, and other relatively common files - things where your browser always has perfectly good ways of playing/displaying them, and always faster and usually better than the QT plugin.
After that, you'll still have to visit the registry to remove the updater/system tray icon loader, which loads no matter you select in the program itself. Extremely annoying, but it's not like it's the only program guilty of a bothersome standalone updater. The location in the registry is HKLM\Software\Microsoft\Windows\CurrentVersion\Run, the program to remove is "qttask.exe".
By following those steps, you can have a Quicktime that will only run on a page that really requires it and won't bother you any other time.
Back on topic - interesting experiment, I think the 21fps can be a handy thing sometimes, though if I want something with sound, I'd probably rather bring along a little PnS with video capability than go through the headache of synchronizing sound, adjusting frame rates, etc. But it's nice to see that it can be done.