90+ point seasons are so much easier now because the atrocious level at the bottom of the league.
From the advent of 20 team league in 2004-05 until 2011-12 the bottom 5 teams in the league averaged a combined 177 points per season. 35.4 points per team.
The last 5 seasons the bottom 5 teams have averaged 161 points per season. 32.2 points per team. Last season was the first time in the 20 team era that the bottom 5 didn't accumulate 150 points. 146 points between 5 teams. 29.2 points per team. This season the bottom 5 have 93 points right now, which puts them on pace for 136 points total. 27.2 points per team.
Napoli is a very good team, but nowhere near an all-time great team. Just like 102 point Juventus was a very good team, but nowhere near an all-time great team. The competitive balance from top to bottom of leagues has vanished with skyrocketing spending at the top. For a team to be an all-time great team now requires that multiple competition success (especially CL of course). Getting to focus on a single competition when there is such a lack of quality in the lower part of the table means 90+ point totals aren't really that special now.