In the past this particular location had been the subject of media speculation and commentary - and with the involvement of the Metropolitan Police Service those associated with a particular narrative were removed and replaced by a new structure / individuals considered to be more 'mainstream'. Not that it is the business of the state to determine the parameters of religious expression - or what is considered normative or premissable. Setting this aside, the allegedly iconic site appears to have been within the purview of an alleged terrorist attack, allegedly involving a white male from Cardiff (in Wales). Not that Cardiff doesn't have sites of importance in regard to the study /exploration / expression(s) of Islam. After all, why go local when you can travel to a site in London - some distance away.
This whole narrative stinks.