Answer
In the Name of Allah, Most Gracious, Most Merciful.
All praise and thanks are due to Allah, and peace and blessings be upon His Messenger.
Responding to your question, Sheikh Ahmad Kutty, a senior lecturer and an Islamic scholar at the Islamic Institute of Toronto, Ontario, Canada, states:
Your attempt to interpret the letter T as the cross is nit-picking. The cross is banned because it represents an idea inimical to the pure doctrine of tawhid or Divine Oneness preached by all prophets and messengers, including Abraham, Moses, Jesus, and Muhammad.
The letter T has no such connotation, so you should not go to extremes in such matters by taking things out of their context.
The Prophet (peace be upon him) warned us against extremism in all shapes and forms.
Almighty Allah knows best.