I don't think of the setting as Islamic anymore than Beauty and the Beast, or the work of the Brothers Grimm is Christian. Influences from the culture, maybe, but no more OF Islam than all the Greco-Roman mythology depicted in the works of Catholic Renaissance artists. In fact, I found the change in the Prince Ali song, "Brush up your Sunday Salaam" to "Friday Salaam" to be kind of dumb. Sunday Salaam is the Genie mixing in anachronisms with the setting, like he does everywhere else in the movie. Friday Salaam makes it explicitly Islamic, which I think I'd find more insulting if I was a Muslim, because that would force me to look at the rest of the movie through an Islamic lens. I don't believe that was the intent, I believe it was some pedantic twit trying to "fix" a mistake by conflating Middle Eastern specifically with Islam. This isn't the real world, it's a fantasy one. We don't need to drag the specifics of real world religion into it. Islam in't a measuring stick for plausibility anymore than Catholicism is in "Game of Thrones".
I fell asleep halfway through Detective Pikachu. Ma was okay.