if some government employee is faced with the decision of blocking entry to Ver or letting him in they are obviously going to choose blocking him for any one or more of the reasons I listed. That government employee has nothing to gain by approving his entry and will face problems if something goes wrong.
Which is indicative of a flawed system.
eta: When was the last time a failure of a governmental employee resulted in that individual 'facing problems'? I don't know about the little people on the front lines, but screwups on a monumental scale seem to typically come with increased authority, budgets, and pay.