What aspect deems a case suitable for the early ending of proceedings?

A case is deemed suitable for early ending of proceedings primarily when it involves claims without merit. In legal proceedings, the purpose is to resolve disputes that have a legitimate basis in fact or law. When a claim is without merit, it indicates that there is insufficient foundation to support the legal argument being made. This can include cases where the legal elements of a claim are clearly not met or when there is a lack of evidence that would support the plaintiff's position.

Early dismissal in such cases saves judicial resources and time for both the court and the parties involved. The law often aims to filter out cases that do not warrant further litigation at an early stage, thus ensuring that the court's time is reserved for matters that have a genuine chance of success.

The other options have different implications. The presence of critical evidence may indeed influence the progression of a case, but it does not inherently warrant ending proceedings early. Involvement of multiple defendants can complicate a case and make it longer, and while long-standing cases with historical significance might be of interest, they do not fundamentally relate to the merit of the claims being made. Hence, the focus on the merit of the claims is central to determining whether a case should proceed or be terminated early.