My view is that if they merely give a vocal assent to Christ, I’d perhaps question it. But when they publicly walk into the waters and are baptized by immersion, for all to see; that’s serious and convincing. Also, given how committed and fanatical they can be following an empty cult; just imagine the impact to their entire being, body, soul and spirit, when they accept Christ, and the living, loving Spirit of God takes up residence in their inner being. Now you’re talking yuuuge commitment; if I may borrow a phrase.
Like I put in my post 10, it could all just be taqiyya. These are muslims we’re talking about. How many are honest to us infidels?