As far as I can see, this is an image issue, not a doctrinal one
or anything.
Why should someone who diligently practise his faith be overly
concerned about image and misconceptions?
Worse, he is concerned with some people going to other faiths and
spreading misconceptions. I think, this potray all the negative
behaviours of humans - anxiety, spite, uncertainty, concerned with
petty things such as other people's judgement on you..
None of these will help one in his faith..