well for anyone thats wrote an implementation thats clean and knows the purpose of header files
they would be able to change to blocks over 1mb with 1 line of code in a header file.

yet the cludge of core ends up needing to change multiple functions in atleast 4 files. which can then cause a snowball affect of other issues if those functions were needed for other things..

in short by being cludgy they dug themselves a hole and cant get out of it with 1 spade. so rather than dig themselves out or starting again with clean code. they are trying to get people to follow them into the hole