There is pretty substantial number of folks who hate Jira, TBH. But you're the reason is their stock is still flat, and the entire company worth something.
Even if it's flat you can find a time frame when it's up. The reality is it's not the best stock by any means, and it will never will be. Why? Because it's Atlassian. No-innovation, KTLO-kind-of-company.
They probably don't hate Jira, but specific implementations of it, which can easily turn to shit with bad management because the tool is flexible enough to allow it.