I'd like to preface this that I am not a fan of the Inquisitors so far in this show, however....
I dislike Reva and the other Inquisitors equally. There is nothing about them that even suggests "authentic SW" to me....they reek of fan-fic and derivative, lazy basic cable sci-fi.
I do think some form of them is a logical necessity in the Star Wars universe. People in this universe are naturally born with the ability to wield the Force. The Empire would be stupid to forgo either utilizing this to their advantage (like they do with Inquisitors) because these people can end up posing as a threat to the Empire.
That said, I do not like the implementation of the Inquisitors here so far. I agree with you, the design, dialog and acting here are cringe-inducing.
I'll always be old school about SW. Vader and Palpatine were the only Sith left. After Obi-Wan and Yoda died, Luke truly was the last Jedi. There weren't dozens of Jedi running around under the radar on the freaking "Underground Railroad" and you sure as **** can't just "turn off the Force."
I don't know... the fact that Vader's own children survived without him knowing about them makes me think it is also logical that such a large organization such as the Jedi will always have survivors that are unknown to the Empire even in such a galactic purge. These are trained fighters who know how to survive and avoid detection.
It's a part of you. It flows through you. Once you're open to it, there's no going back. You can suppress the effects a bit by controlling your FEELINGS, but you don't "turn it off" or "forget how to use it." You wouldn't strain like you're taking a giant **** just by catching a tiny girl in the air for the first time in ten years. Stupid.
I see using the Force kinda like riding a bike. You may be very good at it now, but your first pedal strokes will be wobbly if you haven't ridden one in over a decade.
Our brains tend to forget things we don't practice.
Even with handwriting. I mean, I grew up all my life learning how to write in school (we have those penmanship classes all the way from pre-school until I graduated high school) and now that pretty much 100% of my job is done paperless via computers, I have difficulty handwriting forms whenever I need to (my wife does this for me now too
). I can very well imagine someone being rusty after not using the Force for so long.