I agree, just addressing your hypothetical at the end and how that doesn't follow logically.

So what if it's their job when they clearly aren't doing it and have no connection to the neighborhood? This is a lame appeal to authority fallacy.

Some random official and random engineer checks some bad plans and paperwork and claims "stop signs and crosswalks aren't needed" so we should just automatically defer to their decision despite the residents who actually live at and use this intersection overwhelmingly claiming the exact opposite? That's utter nonsense.

I say alleged traffic engineer because they're claiming they performed a traffic study at this intersection despite residents claiming to see zero evidence of this being performed, but I guess you believe job titles automatically bestow someone with unimpeachable honesty and integrity. A city official made the claim so it must be accurate and true.

selfish car drivers certainly aren't predictable as they break laws already inplace