His reply is incomplete and does not answer the points that I have raised. Yes, indeed, there is Surah Al-Feel in Quran that describes how Allah protected Kaaba from the Army of King Abraha but that was a different time, and Allah had not completed his religion yet. After Mohammed (PBUH), his religion is complete and several things have been ceased such as no more Rasools and no more miracles.
Please note that it is Allah's promise that he will feed but you would not find a person who does nothing yet get fed by Allah. Allah's promise is true and is there but it is conditioned with a man's effort.
Similarly, Allah says that he himself will protect his book, Al-Quran, but what that Terry Jones did? He burnt the Quran but did Allah came to protect Quran? or did he send any angels to stop Terry Jones from burning Quran? Does this mean Allah's commitment was false (naooz billah).
Allah promised to help and protect Mohammed (PBUH) from Allah's enemies but did he protect Mohammed from the pelting in the city of Ta'if while his shoes were filled with blood? Similarly did Allah stop Mohammed (PBUH) teeth from breaking in Ghazwa Auhad?
Please try to see things in their correct perspective. Allah's promises and commitments are all true but tied up with the efforts and sacrifices of those who call themselves as Muslims.