To the latter, obviously "it" has improved, but ecosystem effects make certain changes very difficult and expensive to coordinate and what we see here is the scars from that process.

Everything you see in the world grew out of things that came before, and was made by fallible people working with limited time, energy, and perspective.

Honestly, I'm a bit surprised someone with a three letter handle wouldn't already recognize this. Surely you have been around here for a while.