It really is though. Napoli and Inter competing until the last second to make it out of the group stages ahead of Spurs, Liverpool and PSG wasn't too long ago. Would have never happened a few years ago, the top half of Serie A is better than it's been in nearly a decade and everything suggests it will keep improving. Juve were guaranteed to win the league the same way Bayern were guaranteed to win the league this season... that's not how it works. The new signings help revitalizing the team and improving, if these dominant teams stay still then they end up being overtaken. Last season was one of the tighest title races in Serie A history... now Juve are on course for a 104 points undefeated season. Ronaldo was bought for the Champions League, their season can go from a good one to an unbelievable one depending on how they do there. Doesn't mean that what he's doing is irrelevant, just that it's not as important.