This post makes me think you've never been on a date before, lol. You honestly think that there's a reason to keep going out if you're not attracted to them, you had nothing to talk about, you found them boring, and have nothing in common other than perhaps some shared values (on paper anyway.) I have a gemara about a certain king I think you should learn...
A) I think you're referring to a certain queen. Otherwise, jog my memory.
B) Yes, clarifying that you have shared goals and values and visions and hashkafos and worldviews and no glaring incompatibilities may not be enough reason to get married, but it should be enough reason to say yes to a second date. People are sometimes tired, nervous, under the weather, or just take time to warm up. Chemistry and sparks take time to develop as you get to know the person, as does attraction. (Note that there is a marked difference between lack of attraction and repulsion.) Marrying them if these things never develop would quite possibly be a disastrous move, but instantly writing them off can also be.
C) Thanks for calling my dating experience into question. Trust me, I've been on my fair share of DOA dates. As the saying goes "Sometimes you meet someone and know from the first moment that you want to spend your life apart from them".