It makes sense to assume even the question was actually false. It is a strange question to begin with. Since the Imam was accused in his lifetime of a similar belief its not far fetched that the question was not genuine. Or it was a exaggerated allegation upon someone else with a view to tell the person his view was kufr. It is also absolutely possible that the answer of Alahazrat was in the context of a more normal belief, however if you look at words mentioned in the question and answer it makes it difficult to accept this with certainty. To the extent that if you say withholding from takfir was in the context you mentioned here then it can be said you are rejected the fatwa as it is presented since the wording is explicit.