There are over 1.5 Billion Muslims around the globe. There are many schools and branches of Islam.
The people behind .ISLAM and .HALAL applications are Iranian and Shia organisation. They represent minority of Muslim community (approx 10%-15% of all Muslims). All supporters of this application come form one branch of Islam (Shia) and from one country (Iran).
These domains will be controlled and managed by a minority group within the Muslim community.
Additionally the applicant for this application is a commercial company who do not have experience in running top level domains or setting its policy. Moreover a commercial company should not be allowed to manage a sensitive domain related to a religion unless their application and domain policy is endorsed by organisations who represent majority of muslims.
Halal is a religious term refers to anything permissible or allowed according to Islamic law and rules. It is very dangerous to allow registration under this top level domains as any content related to this domain or one of its subdomains will be assumed to allowed under Islamic law and rules.
ideally the applicant of these top level domains should be organisations like the Organisation of Islamic Cooperation (OIC)