Yes, it is.
This anomaly dates back to the Health and Hospitals Corporation days and has gone on ever since. Back in the mid-'80s 477.8625 , 85.4 -simplex - was the only Tac channel citywide (F8), as well as being the Brooklyn South / Staten Island dispatch channel (F5) - repeater. In the late '80s, 477.8625, 85.4 - repeater - became the Brooklyn Central (at one point to become the Brooklyn North for a while) channel, while still remaining F8, the Tac channel - simplex. In the early-'90s, when each borough, more or less, first got it's own Tac channel (usually simplex on the dispatch repeater output), the citywide Tac channel remained the simplex of Brooklyn Central's dispatch repeater. The early to mid-90s brought some major system "improvements" that have come and gone (800 conventional, 800 trunked) and the hostile takeover. After this latest upgrade (the move to the upper T-Band), one would have thought that this oddity would have been fixed. I'm not sure why, to this day, one of the Brooklyn channels still gets recycled elsewhere - with the exact same CTCSS tone.