I think people are just miffed that Red Bull and Vettel are just too good.
From the Safety car to the end of the race,Vettel was increasing his lead by two seconds a lap, too finish a full thirty seconds in front of Alonso.
Cars where still on the track and had to take avoiding action with stopped car on the track.
Safety is still paramount.
If people want to watch carnage they should watch NASCAR or Demolition Darby's.
Cheers