Simple! És perquè no confieu en els vostres germans musulmans, penseu que la seua fe és tan feble que només per escoltar-ho, es confondran o es convertiran.
2: even if muslim does hear sermons with 'allah' in it, why you think they can get confused? simple! it is because you don't trust your own muslim brethren – you think their faith is so weak that just listening to it, they will get confused or get converted