Someone else could also do the analysis, Jepsen is open source
However note that the value of having Kyle testing Disque is not just his ability to use Jepsen well (of course) but also the design of the tests so in order to stress the right things to find bugs. And finally the whole analysis that is performed together with the test. So regardless of the fact I'll learn Jepsen or not I hope Disque will get some official testing with Jepsen. However I understand Kyle is a single person and there is a huge queue of systems to be tested.