Ground staff rushing around at a busy holiday destination such as Corfu (Kerkyra) is clearly dangerous, but is the practice of connecting a push back tug to the aircraft whilst pax are boarding considered acceptable? It surprised me to see this happen when I was boarding a BEA 146 at LHR last year - there was a significant jolt as the tug coupled up which could have caused unwary pax to fall off the entrance steps had it been a slightly bigger jolt!
I hope that the crew member makes a speedy recovery with no permanent effects.