Mufti A.S Desai (hafidhahullâh) replied to a question on this specific fatwa [see link at end of quote] :
Your e-mail dated 12 August 2011 refers.
It is shirk to direct supplications (duas) to the dead. The fatwa
which you have mentioned is erroneous. The statement, “Ya Ali I
invoke thee..” is shirk.
It is necessary to refrain from the lectuires, etc. of this ‘famous
Aalim”. It appears that he is from among the people of bid’ah.
Attached is an explanation on Tawassul.
It matters not if the shaeikh is a Deobandi. It does not follow that
whatever a Deobandi Shaikh says is correct even if it conflicts with
Feel free to circulate our reply. It is valid for you to inform others
that the shaikh’s statement is in conflict with the Shariah and is
tantamount to shirk. Don’t become embroiled in disputes with anyone.
Merely inform them, and leave them to make their own decision.