When it comes to usability, getting users to successfully complete a task is all about their available brain space: their cognitive load. The more clutter, options, or roadblocks we put in front of them, the more we fill their head and make it difficult for them to complete a task.
Let's be very clear. The people who wrote this really have no idea what actually happened. They want you to pay them to do security audits of WordPress installs. But what they're suggesting is plausible. Namely, that the silliest of WordPress plugins was an opening by which politicians', despots', and footballers' dirty monetary laundry could have become available to the entire world.
Yeah, sure, maybe you're a smug engineer who likes to pretend that Windows doesn't exist. But why do you do that? Do you hate money or something? Of course you don't hate money. You hate Windows development. That's totally reasonable. Anyway, it's about to suck less.