Thought I would weigh in here.
I originally thought the same, that the sentence mentions that you can take an additional universal career at character creation to add thematic flair to the character.
However, since it is optional, I didn't (and still don't) see it as a problem to have it as part of the generator. Particularly since it is an optional mechanic. I do also agree the text could read either way.
Since Ogg mentioned that the person who investigated this contacted the devs and they've explained their original intent was to allow a universal spec to be taken as the main starting spec then I am even more in the camp of 'what is the issue?' because if the developers intended that, and the generator does that. Then there doesn't appear to be an issue. In fact it makes sense, you can start as a universal spec but it does come with a serious debuff in the fact you can never ever take a signature ability.
Although it does open up design space for a generic universal signature ability. Now that would be interesting to see.
I get you may read it different @Stan Fresh , but as Oggdude has said, you can just turn it off if you don't like it.
Developers, if you are reading this I'd recommend reprinting the rules in a new book and make it a bit more clear.