Lukaku got his goal, which helps him to quickly get back to normal and nobody cares whether he scored that against 9 Napoli players or 11 Napoli players. But for Napoli the tendency for the moment is bad and stopping it is hard.
Even though Roma's current performance is not consistent enough, I am sure they can get a place in the UCL next season by finishing in the top 4 of the standings.
It is not impossible of course as they are very close to the top 4, but I am hesitant to believe they will make it eventually. The top 4 are set in stone almost I would say although maybe AC Milan will get into deeper trouble over time. But then there is some unexpected competition from Bologna and Fiorentina and Napoli is still not out of the game for the top 4. It is a single point separating them from Roma. If I had to pick my top 4 right now, I would not choose Roma.
They just don't have that feat yet. As for AC Milan, one should know that they are trying, at the top 3, they have done so well, although it's because many clubs in the Serie A are not so impressive, yet, they deserve the current standing. However, they had it tough in their last match with Salernitana, it was good luck that saved them, or else, Salernitana would have won that match eventually. I hope they can try better in the coming ones and they should be able to beat Sassuolo FC easily with my analysis. Nonetheless, concerning Bologna and Fiorentina, they are doing well and they should continue to do well. But concerning Napoli, I must say I do not have any hope in them again, the gaps are too wide, and not even Victor Osimhen can do anything again unless for a miracle.