[jamestimmins]

I'd encourage you to consider what they're truly trying to accomplish by using Jira. Are they simply trying to take existing agile processes and add new tooling? If so, that doesn't sound too bad. Perhaps cumbersome, but if new tooling allows you to keep existing processes then it's a win. But if using Jira is shorthand for changing processes, then those are what you want to focus on.

It sounds like you may want to talk with the product owner to really understand what the long-term goal of this change is. Then, if you don't like that, you'll be in a better position to argue why your current/alternative process allows you to provide more value to the company.