If we want to encourage users to vote on questions, maybe the default tab on the review page should be the "First Questions" tab, instead of the "First Answers" tab?
The /review page is not designed for the regular browsing of questions. It's not really where we want to encourage people to vote on questions. You should keep doing that from the main page, as usual.
Instead, it is intended solely to allow those users who care about improving the overall quality of the site to invest time in screening various categories of "high-risk" posts, and if a problem is found, flagging them for moderator attention.
Of course, if you happen to find a post in the /review tab that is worth voting up, you should certainly feel free to do so! But this is not the primary or intended purpose of that page.
I assume the reason that the "First Answers" tab is displayed first is because it's extremely common that a new user posts something that is not an answer. Lots of users are apparently accustomed to other "forum"-style sites, where I understand it's accepted practice to post "noise" or "discussion" answers. These are not the types of "answers" that we want to appear on Stack Overflow, so finding and flagging them is very helpful in preventing the noise from drowning out the useful content.
The purpose of the pages under /review is to review questions and answers that could be problematic, or answers that are not really answers. Its purpose is not to let users vote for questions, for which there are already pages showing the recent questions.