No way, that Liverpool side had Milner, Coutinho, Henderson, Firmino. Coutinho left early but he was amazing for Liverpool and was legit one of the best players in the world. As for the other three, they have been key players for Klopp throughout the past seven years which shows their quality. Who has Roma got on their level? They haven't a single world class player. They've got some promising young players like Zaniolo and Abraham, but they aren't at that level yet.
And there is something called football heritage. Roma hadn't won a trophy for 14 years. However good the squad is on paper that is a huge mental and psychological challenge for any football club, to go that long trophyless. Liverpool's trophy drought was only three seasons for Klopp. He still had a lot of players who knew what it was to lift something in Liverpool