More likely ST haters trying desperately to prove such.
There’s no doubt TLJ was a divisive movie, and that enthousiasm for the ST era has dropped considerably in parts of the fanbase because of it. So, there’s no need to prove anything. If there’s less appeal in the ST era, it’s because the powers that be failed to generate it. That’s not the fans’ fault.
It’s not a matter of enthusiasm. If fans were just unenthusiastic they would just not watch the trailer and not bother to press dislike. The dislike ratio is just indicative of petty and pathetic fans trying to prove that “new Star Wars bad, Clone Wars good” as if anyone cares.