I'd argue that software standards make it harder for everyone to write a "history". How many people simply gave up on their own websites and outsourced their work to an entity they do not control the actions of?
How much of that fancy web standard is about optional visual? What are we really getting from it? Would you consider a new API for drawing rectangles "progress"?
Your `Array.flat` example may make sense, but only because we are way too deep to even consider alternatives. We have mostly no idea how these standards will evolve and decided to keep on putting band aids to remain afloat.
The best way to keep information accessible is to make it understandable by a human without mandatory automation. Don't you find it horrible that all the information websites can provide you is actually dependent on a thousands pages long spec? Is it really the only solution you can think of?
The resiliency of the web is mostly equivalent to papyrus, if not worse.