@hezediel Well, in your case I believe it's not. To clarify it, unfortunately gta modding is not like Skyrim or Fallout modding (if you are familiar with those). I mean for example, let's say you only want to change your gameconfig.xml right? But you have to copy entire update.rpf to your mods folder.
and since Redux comes as .oiv, it's very very difficult to determine which files modified exactly and which ones are original. If you would have like 50 mods or so, I would say trying to manually remove Redux might be better but since you have only a few mods, I would say it's not worth it and most probably reinstalling all of them would be even quicker.