Super quick reply because I was on the site before bed at the right time!
In general, the extinguisher flinging the spaceman around in a circle is intentional, not just when running out of juice. It is more noticeable when you run out of juice though, so we did give the player a short time after running out of Extinguisher Juice to avoid frustrating situations like if you were thiiiiis close to the ship, but ran out and you just needed that extra little nudge.
Reaching the ship is indeed possible, and we included a video on the games page showing that it can be done if you master the lack of control, albeit it is fairly challenging. No dev tools were used for the video, just the exact build that was uploaded.
Cheers, and thanks for playing and checking us out!