They're highly divisive lot.
'Every Salafi and Deobandi is not a terrorist but I have no hesitation in saying that everyone is a well-wisher of terrorists and this has not been appreciated by the Western governments'.[32][33]
Attacks on Muslim Organizations
The Quilliam Foundation has attacked various British Muslim organizations accusing them of having ties with the Pakistani Jamaat-e-Islami and the Egyptian Muslim Brotherhood, two mainstream political parties with large followings in their respective countries. The organizations which the foundation has targeted include Muslim Council of Britain, Islamic Forum Europe, Muslim Association of Britain, Islamic Foundation, Islamic Society of Britain, UK Islamic Mission, the London Muslim Centre and Da’awatul Islam.[34][35][36]
Deobandi's run around 800 mosques in the UK, and including others they have issues with that's basically most Muslims in the UK. Good luck trying to gain support from the community.
What's divisive about that ? Sounds like they're merely poinying out that organizations within Britain have links to various terrorist organizations.