Not really a loss; he was a liability there. He excelled for 6 months, and was dogshit for the rest of his tenure.
I saw that game, and clearly remember Morata and Pogba beasting; even Hernanes had an outstanding performance by his standards that night. Dybala was missing through injury, and both Chiellini and Marchisio were injured I believe. You called it a much more inferior team. I honestly think the defense was better, and the midfield with Pogba in beast mode was on par, if not better than what we can field now. Dybala missing was huge, but Morata delivered. The midfield back then was comprised of Khedira, Marchisio, Pogba, Hernanes, Sturaro, and Pereyra. Currently, we have the same group of players without Hernanes and Pogba, and Pereyra, and with the addition of Matuidi, Pjanic, and Bentancur. Hence, whereas we have more depth now, I wouldn't go as far as to say that Juve 2015-2016 was vastly inferior.