It may not be hit in summer release, but it would help them make more money than what they received now. Summer films, usually action, tend to rake in more money than expected while fantasy films usually did the best in November, December, and January (earliest). Some horror films would be a hit in October, despite of lower budget. Any other films in different months were either lucky, marketing did right, or well known, like Joker.
I hope a bear throw a book at you, moon at you, and do a tap dance wearing a thong and leather boots.

Still I haven't seen it
Well, this is a tomb. I'll make them feel at home

On top of it getting released at the worst possible time, the marketing team advertised it as if they have never watched the previous Terminator movies before; it was monotonous, and they didn’t really put much effort into it. Even a summer release wouldn’t have been enough to ensure that this movie would be a box office hit. It’s a shame though, because the critics have been raving about the quality of it, along with the futuristic visual effects that it has.
“There are no atheists in foxholes, eh?”-Keith Jennings from the Omen.

Yep
Well, this is a tomb. I'll make them feel at home

Well, it was not a good month to release the film in. Should have been a summer release.
I hope a bear throw a book at you, moon at you, and do a tap dance wearing a thong and leather boots.

They’ll probably still have another go in five or ten years time.