How does a VFR aircraft take off from a controlled aerodrome in conditions that are unsuitable for VFR (which is what you are saying)?
Because this is what you, the industry wanted. When Ops Control closed aerodromes there were complaints from pilots saying they were in the best position to know, and frankly, it should be pilots making those decisions. You don't need to get airborne to make the decision. (not criticising you Megan, cos I've done that myself!). Pilots should not be expecting ATC's to make this decision for you.
There's obviously a very wide experience gradient amongst Private Pilots, it may have been within someone's skill set to depart special VFR on that day.
Do any of you have a quiet word in another pilots ear when they are just about to hop in a plane VFR on a day like Friday?