Wow.
I didn't pay any attention to your squad, but if I had, I'd have done the same thing. You have 4 starters, true, but you also have no glaring holes - not like you are totally without a 2B so I could be entirely certain you'd pick one. If I had to guess I'd say you'll either take a reliever or a C, but why should I guess and take the chance of missing on the starter I need when I can instead play the skip card - which is after all a part of the game, with this its intended use.
Hell, even if there were a glaring hole in your squad I may have done the same thing, simply because your teams are usually better than average, so I'd rather have you picking at the end of the wild card round and everyone else a spot earlier in case you wind up in my league. That too would be playing within the rules for sake of strategy (i.e. to improve my chances), not to be an *******.