That's still a vulnerability. In that case, the exploit is merely your keyboard where you log in to that paswordless root account through that particular port. The exploit is the way that you leverage an existing vulnerability (the vulnerability, in your case, being the manufacturer-provided backdoor).

These systems come with vulnerabilities, not exploits. Exploits are the things you throw at a vulnerability to make the device bend to the your will.

I used to believe as they did, but after actually reading the Bible for myself, I've come to see that most of the crazy ideas thrown around by Bible-believers are ironically thrown around because they haven't actually read and analyzed the Bible.

The definition of faith straight out of the Bible (Hebrews 11:1, emphasis mine):

Many people who claim to believe the Bible also say "Well, you've just got to have faith." What they are describing is blind faith, which goes against the very teaching of the Bible. According to the very book they claim to believe, faith defined as something based on tangible evidence. However, much of what they believe has absolutely no tangible evidence.

obligatory guild reference: http://www.youtube.com/watch?v=urNyg1ftMIU

I was able to use your link and in about 30 seconds find the following setting (write up here):

Type about:flags into the omnibar. Click Enable under Print Preview.

...but my "test" wasn't so bad. I basically was interviewed by my boss on one day, where he checked to see if I brushed my teeth, and knew how do dress professionally. Then I had an interview with the previous IT guy. The previous IT guy (who was on great terms with my boss) just told my boss that I passed. That was it. I can totally understand not wanting to be tested during an interview, because for one of MANY reasons, it is insulting, to be honest. I, personally didn't find MY interview with the prior IT guy insulting, because he was good and could tell I could fill his shoes. I can definitely see the problem with the boss, who has no idea what I'me even supposed to be doing, interviewing me. He wouldn't know if I was BS-ing him or actually telling him answers from my experience. If you are being tested by another IT professional, I find that it reflects the boss's want for quality work. If it is that insulting, then by all means, get a non-insulting boss. You just might be looking for a day or two longer for work.