From my read of the situation, this is exactly right. It sounds like the NRA leadership is corrupt and should be removed, but the attempt to dissolve the organization really seems like abusing the legal system to achieve a partisan aim. If anyone has been harmed by the NRA leadership, it's its members and donors, and I don't see how dissolution helps them.
Also, partisanship just seems totally damaging and unstrategic to any single-issue group: once the party you tied your fortune to goes out of power, there goes all your clout. It sounds like the unions made the same mistake: https://www.nytimes.com/2020/09/06/opinion/labor-unions-repu....
Full disclosure: I'm not a gun owner, but am thinking of getting in to shooting after binging on Forgotten Weapons (https://www.youtube.com/c/ForgottenWeapons).