Regarding your first observation, I think that people who are very religious and anti-abortion expect their agenda to now be championed by the new administration. I have my doubts whether that will actually come to be.
More years spent getting caught up on intraspecies drama (bathroom use!) rather than working on big ideas.
I'd argue that Pence brought quite a lot to the Trump campaign in reeling in Republicans skeptical that Trump would champion conservative causes.
What did Kaine bring to the Clinton campaign? Not much it appears.