Nah. It was very clearly an opinion. Saying something aucks us as much an opinion as "it was great". It is clearly subjective. Saying it bombed or was a success is factually right or factually wrong. Clearly a difference.
Should 99% of posts on this forum be marked as opinion at the start?
Afterall, someone Saying npc x us great or bad is clearly seen as opinion based. So should one's statement about a movie.