If Simorgh unveils its face to you, you will find
that all the birds, be they thirty or forty or more,
are but the shadows cast by that unveiling.
What shadow is ever separated from its maker?
Do you see?
The shadow and its maker are one and the same,
so get over surfaces and delve into mysteries.

(Attar - https://en.wikipedia.org/wiki/The_Conference_of_the_Birds)

@daedalus reminds me of "it is always easier to change the design than the implementation".

Models never match all of reality; a model is a mapping/representation, we are reductive/selective in what gets mapped, the model is always serving a purpose, and is delimited in scope and temporal validity (Stachowiak, Allgemeine Modelltheorie - maybe one of the last cybernetics scholars)... but then the purpose may change but we find we still use the model because we can't agree how to change. Maybe not everyone has the same purpose. Or we agree that we made mistakes, but the wrong model is useful to some or all in a way that does not affect everyone the same way. Some kind of adaptation may take place and that involves change and cost.

It is quite natural that systems favor stability and seek to avoid change or minimize that cost.