Hi Netanel,
A body is a physical thing made out of a physical substance or material. In terms of man it is inherently made out of the matter your theology omits. A "heavenly substance" is not a body at all. Without a body man is not man. It takes both components. What you are describing is missing a main component of resurrection. It doesn't matter the apologetics that are used to try to circumvent this, it is inherently flawed.
Angels did not appear to men in the Tanach in bodies? Like in the Sodom and Gomarrah account, for example. What were their bodies made of? Adam's flesh or not?


My Lord, what a morning, when the stars begin to fall - Judith Durham