JWs meeting -- and talking independently -- in small groups -- is anathema to a paranoid Governing Body; it's probably the real reason they dismantled the old midweek Book Studies in private homes.
When he introduced the so-called "new Light" in 2013 limiting the FDS to just the Governing Body, Splane hinted that it would hopefully end the nuisance of having to deal with letters from the field submitted by the (newly demoted) individual anointed JWs, writing in to offer their independent "revelations" or "New Light" suggestions, etc. "Thanks but no thanks" was his implicit message.