They're asking both. The headline is addressing the "should" question, but the article goes a little deeper.

The survey ... also finds a rare point of partisan agreement when it comes to the importance of all qualified citizens being allowed to vote. However, there are sizable differences in confidence about whether this is happening – and even wider differences in confidence in whether people not legally qualified to vote are prevented from voting.

Nearly all Americans (94%) – including 95% of both Republicans and Democrats – say it is important that people who are legally qualified to vote are able to cast a ballot, with 82% saying it is very important.

A large majority of Republicans (87%) are at least somewhat confident that legally qualified people are able to vote if they want to, including 54% who are very confident this is the case. Democrats express less confidence: 69% say they are at least somewhat confident that legally qualified people are able to cast a ballot, and just 28% say they are very confident in this.