Does IPSA have a boardroom as such? I doubt it has a conference room big enough for all the people they needed for that decision.
Even if it did, offsite meetings are fairly standard fare for organisations wanting to make important decisions. Way too many interruptions, way too many "I just need to pop out for for a quick meeting", way too many waiting for X and Y to turn up because someone nabbed them in the corridor, way too many "I have to leave at 5 cos . . . .".
Offsite meetings just work (well mostly). 2 days in a room, one overnight stay. One late meal on day one to heal over the arguments of the preceding day's work.