Hi Matthew,
While some text mode trickery might sort of get you what you seek, I have to rely on the rule of thumb that I follow religiously, which is planned = work and unplanned = issue. If you have a requester, then you have to have an issue. The primary contact on the issue is always the requester by default. The issue/request should be converted into a task. The "Resolved by" connection between the original issue and the resolving task is what ties the request and the work together, but keeps the records separate from a process perspective. This keeps the requester in the loop on their original request (what's happening). When the task is closed, the issue is automatically resolved, sending an email to the requester.
This is Workfront request queues 101, and is by design. Setting it up any other way is incorrect in my opinion, doesn't jive with the way Workfront was designed, and doesn't really reflect the actual process. I recommend you rethink the design so you don't run into major unforeseen challenges later.
Thanks,
Narayan