Not everybody flies modern autopilots, especially in the third world, so reducing the rate in the last 1000ft is still good basic airmanship.
Of course undue TA/RA are not triggered VERY often.
I personally had a TA because of the rate of the guy above me.
Anyway, don't forget that statistics don't lie, and if you still have any doubt, read this:
www.eurocontrol.int/acas/webdocs/ACAS_BULL-D-2.0ReleasedMARCH03.pdf