It just demonstrates being thoroughly out of touch with the hardware platforms that people are actually using: not a quality to seek out in infrastructure for your embedded-system project.

It is hard to imagine any reader who might consider an embedded project being unaware that all current hardware (excepting rare MIPS variants) is little-endian.

A microcontroller meant for use in a network router might reasonably be big-endian, just because most IP protocols are. That is the only place I can think of where one might deliberately choose it.