The idea that anyone can use the force is introduced in A New Hope
That’s still not how the Force works. You don’t go from level one to one hundred in a matter of minutes, especially if you’re Sabine and didn’t really learn anything.
Luke went from struggling with a training droid to guiding a proton torpedo into an exhaust port within one day. Sabine went from sensing Ahsoka’s presence to pushing a guy a few feet within a few days.
Luke is naturally strong with the Force. Sabine isn’t. Nor does she seem to resonate strongly with the ways of the Jedi.
You don’t see a problem, from a narrative point of view, with the idea that anybody can become a powerful Force user, despite having no aptitude for it, and putting in minimal effort?
…I suppose that’s an opinion one could hold.