At one point I was rethinking about its flakiness too, but another part of me was saying that these command classes should be able to handle any sort of inputs thrown at them. Randomizer with fixed seed may remove the "randomness" in this regards.

But I do agree that there might be chances for it to be "hey, the test fails to run, but after running it passes again". I do not yet know for sure that will happen, maybe I should heed your advice and go with fixed seed.