While the Boeing design may be not perfect and there is room for improvement, it has evolved quite significantly. I'm afraid (AFAYC) and glad (AFAIC) that the
fallable human will remain in the cockpit in the foreseeable future.
...Lay enough traps in my path and I am sure to fall into one of them. I'm only human.
While traps have to be identified and corrected, crew performance standards have to be maintained.