This is currently mapped as The Fitzrovia, a GK pub. Its website https://www.greeneking.co.uk/pubs/greater-london/fitzrovia still operates and shows future events. 

I assume therefore that AS Roma Club London - Lupi di Londra meets there occasionally.

That does not justify a change of mapping unless and until the club actually owns the pub and changes its external signage to show the name of the club more prominently than that of the pub. It should instead list its address as The Fitzrovia. 