There's two different questions here: one is "is the way things are currently done stupid" (to which the answer is often "yes"). The other is "can a random outsider do better just by thinking about it" (to which the answer is usually, though not always, "no").
It's the same principle as another comment I made a few days ago ([1]). It's not hard to identify problems that really are problems, but finding effective and feasible solutions to those problems is often far more difficult, especially if you're an outsider. The mistake isn't in identifying the problems, it's in thinking that you can come in totally blind and know how to solve them. (Or, put another way, in thinking that you as an outsider can tell the "dumb and easily fixed" problems from the "horrifying systemic nightmare" problems.)
It's the same principle as another comment I made a few days ago ([1]). It's not hard to identify problems that really are problems, but finding effective and feasible solutions to those problems is often far more difficult, especially if you're an outsider. The mistake isn't in identifying the problems, it's in thinking that you can come in totally blind and know how to solve them. (Or, put another way, in thinking that you as an outsider can tell the "dumb and easily fixed" problems from the "horrifying systemic nightmare" problems.)
[1] https://news.ycombinator.com/item?id=43265532