Uber Sirus phrases interruption while Maven witnessing him

Hello, yesterday I was doing some uber for challenge and noticed some small bug (imo) - when Sirus do his circle clones attack with DIE beam, he always telegraph it with voicelines (like "You will long for nonexistence!"), but if he start any of his voiceline, and someone else start any voiceline, Sirus line got interrupted. Also it "works" with Awakener Ring MTX, and you can interrupt him on your own. My point is it can really mess up your run and get you killed