From an xy-VSFilter perspective, I'd actually prefer CCCP only including LAV Video since it doesn't have weird behavior related to stride, colorspace handling, and reconnection like FFDShow does. Users who desire functionality from FFDShow can install it separately, but as soon as they complain to me about FFDshow bugs, I can point them right back at CCCP.
The main benefit of CCCP, is as a simple "just works" codec pack which can be recommend when people are having playback trouble, since usually such people are not knowledgeable enough to know the recommended components to install separately. In such cases it easier to just tell someone, "Install CCCP", and avoid the hassle of troubleshooting a potentially obscure codec problem. Let you not forget that the reason why CCCP even came into existence, was because of a collective decision of fansub groups of the time who were tired of offering playback support.
FFDShow never really fit into this goal very well, considering the extensive testing which CCCP devs and their beta testers need to do, just find a version which could be considered "stable". Now that LAV Video and LAV Audio have become viable options, much of that hassle can be avoided, and any problems found at the last minute have a high chance of being quickly fixed by nevcairiel.
Though it the big picture, if Lord wants to remove FFDShow from CCCP, there is a 90% chance that that's what's going to happen unless the fansub groups who support CCCP vote against it in force. The way I see it, this was never truly up for discussion in the first place. I've yet to see Lord ever change his mind once he decides something, so anybody who really wants FFDShow included has an uphill battle to convince him. Futile effort IMHO, so I'll say out of it.
All I ask is for the next CCCP version to be designed in such a way that if a user installs FFDShow, madVR, or other decoders/splitters separately, they either never override CCCP's defaults, and/or the default configuration continues to be easily recoverable with a simple "Reset All Settings" & "Re-register Filters".