Hows about the fact the aircraft probably does EMA-PRG-EMA-BFS-EMA?
Would be careful about shouting off about it as folk on here believe them to be telling "porkies".
I can tell you for a fact we (another operator) had an aircraft stuck in PRG for 3 hours yesterday due SNOCLO, which if the same has happened to Baby then it would be due to Force Majour.
Having just had a nosey it looks like their EMA-PRG actually diverted to VIE yesterday, and had to await PRG re-opening before continuing back to PRG.