I can't see the link, either, so take the rest of what I say with a grain of salt.
These reserve billets could also be the stop gap put in place to provide some kind of OCO capability while we figure out our own longer term manning issues. I've personally started looking at reserve and WIAS solutions to bring some cyber expertise to my components while we unscrew our JMD. Frankly, there's a good core of people doing the team-level tactical planning, and the JFHQ-C's are getting better. Unfortunately, we find our geographically-aligned service components and JTFs completely lacking reasonable cyber expertise, which impacts planning and synchronized execution.