Even though Roma played really well, I believe that the reason Roma defeated Napoli once more was the red card Napoli received. Victor, a striker, should not have received a red card like that because I didn't see anything particularly awful in the area. Roma won 1-0, and after Osimhen received his card, they scored again. If you watch the game, you will see that Roma took advantage of the opportunity to give the Napoli players a red card in order to win; otherwise, it would have been very difficult for Roma to win.
I've also mentioned that Lukaku hasn't been scoring lately, even though he did score the game's winning goal against Napoli. If Roma wants to sign Lukaku, now is the right time to do so, as I don't think Chelsea will want him back. Lukaku performs better in the serie A league than the premier league, so it will be beneficial for him to continue there. Even if he returns to Chelsea, though, he won't be able to play as well as he does in Roma.
I agree with you, Roma played very well, they also used the talents of the players they have in a masterful way: credit to the coach.
However, for Napoli there is always a crisis, and it doesn`t stop at all. I am convinced that his place in the cups is also at risk.