Having driven past there most days for the last 6 months, I dont think that's right. Most of the time, money and effort was spent on earthworks and footpaths/railings infrastructure to allow a DDA compliant ramp to access the bus stop - which is of no value if the bus stop is shut. A small...
It's in the Argus too. http://www.theargus.co.uk/news/14615245.Bus_stop_shut_just_days_after_re_opening_because_of_health_and_safety_fears/
Why fans would use that stop rather than the Falmer station one, I'm not sure. Maybe to access the buses from Lewes after the game, to jump the bus queue...