It's pretty easy to link directly to TBP so that Knossos will download TBP.
On top of that, when Fate of the Galaxy or Diaspora release, it would be stupid to not be able to grab a few extra users just by having a TBP link in Knossos.
Finally, Knossos is the direction the rest of the SCP is heading in. If we're not going to use Knossos we might as well give up. Any TBP release without Knossos would be hopelessly out of date within a few months.