Yes, such ban is very very unconstitutional. Unconsitutional that it is already against the basic human rights enshrined in our Federal Constitution.
Article 3 (1) maintained that Islam the official religion of this country and other religions are also permited to be practiced freely in this country. Article 11 (3) (a) stated that every religion in this country has every right to manage its own religious affairs, while Article 10 (1) (a) guarantees our freedom of speech and Article 8 (1) recognise the equality of every citizens in this country.
The word "Allah" is universal and it does not belongs to any particular religion. In the Northern Borneo states of Sabah and Sarawak, the natives who embraced Christianity since birth use the word "Allah" in their Malay language bible in their church services.
In Indonesia, Indonesian Christians are allowed to have the word "Allah" used in their Malay language bibles and printing as well as publishing of these texts are even allowed.
Even PAS Spiritual Advisor and Kelantan Menteri Besar Datuk Nik Aziz Nik Mat openly agreed that the word "Allah" should not be monopolised only in the name of Islam. The word "Allah" is arabic and it is a direct translation from the word God.
Islam is originated from the Arab continent and it does not mean one who is a non-Muslim cannot learn to read and write arabic. Arabic is a language, not a religion.
Therefore, Umno, BN, their federal government and the home ministry in particular, please accept the facts and not making a fool of yourselves in the eyes of the international community.
There is no point for you to uphold your supremacist ideas in such way.