Yeah, there's no need to use the entire length of the whip in a fight (all it says is that it can extend to two meters); just spool out a half-meter or so and you're golden for more confined spaces. For a good inspiration for such moves, go watch some of the videos of Bruce Lee doing demonstrations with nunchucks. It isn't a perfect comparison, but look at how close he can keep it to his body without much trouble until he needs to strike out. With the right training and moves (and knowing how to handle the counterweight at the tip) it shouldn't be too hard for someone dedicated to it. Not to mention with Wireless, you could probably spool and unspool the monowire mid-fight, thus extending and shortening your length as necessary for the conditions.
That said, I would count the Reach as lower when using shortened spool.