On the main sites, questions should be just that - questions.
On the meta sites - both Meta Stack Exchange here, and the per-site metas, you can also post feature requests, bug reports and discussion items.
It is customary to write these as questions, but it is not obligatory.
In the particular case you linked, that is a feature request. It does not need to be phrased as a question.
The edit you suggested, unfortunately, is wrong. The feature request is directed at Stack Exchange (the company). Your edit would change it into a request for the community. But it is not the community that determines the length of review suspensions - the community can only request that, it is the company that decides.
It could be phrased as "Should Stack Exchange be more friendly to hard-working reviewers". Personally, I do not believe that title change makes a difference, so I'd leave this one as it is.