Hmm just thinking outloud here but could it be the ridiculous "bunker" scenario presented a couple years back was a metaphorical "bunker." Information lockdown? The borg is removing coercive language, pruning controversial subjects from KH discussion that could be recorded and used in evidence while the policy itself still exists in by implication?
Essentially the borg going "underground." After all we all know how good WT is at saying something without saying something, getting the intended message across without using hard directives.