Allah subhanu wa ta'ala make the balance and he can change it, miracles are changes of the norm or the breaking of the normal rules.
There was a report that an Indian king saw the splitting and when he heard about a new Prophet, he became a Muslim.
Also when other things were put together they were better than before. A companions eye came out the Prophet (peace and blessings of Allah be upon him) put some saliva on it and put it back into its socket and it was better than before.
Below is a website that talks about the miracle.
Allah can do anything when he wants, however he wants, it is not incumbent for him to do anything.
The miracle of splitting the moon did occur and to reject this is to reject the Quran. [54:1]: “The moon has split and the hour has drawn closer”
The Quran is the Prophet (peace and blessings of Allah be upon him) greatest miracle. Jesus (upon him peace ) had no power to do anything at all, except by the permission of Allah subhanu wa ta'ala.
Jesus's (upon him peace) miracles are not symbolic, they are real events that actually occurred.
This person who believes these things is in danger of going astray because to reject the Quran is an act of disbelief. I cannot accept the new opioions of MAK, he may be a ultra modernist or a person influences by a strange group, they are not the majority.
And for those that state they are using the Quran as a source, if only they understood it,
[29:50] They said, "If only miracles could come down to him (Muhammed) from his Lord!" Say, "All miracles come only from GOD; I am no more than a manifest warner."