They deleted all the files in Real America’s Voice's S3 bucket, but it seems like it'd be more mischievous to upload larger and larger files to it over time to make them wonder why their bills are skyrocketing. That and randomly change the permissions of a few files per day, delete data from the middle of files, etc.
There would probably be more illegal actions taken into account if caught if they cost the person/church/organization/company more money by doing so.
While fun I am sure there are better ways to do something without costing people/organizations money. I think this is important to consider when we compare deeds and acts we deem as better for everyone and compare it to things we deem as not okay for everyone because we tend to get wrapped up in the idea that our opinions justify what is right when what it boils or would boil down to is this.
Ousting a right wing ass hole and costing him and the church more money = illegal
Ousting someone through extortion or costing them more money through scams = illegal
While we could morally argue one is far better than the other the way this could be portrayed especially by someone in Florida a specific politician called DeSantis: "Those gay rights activists are basically scammers and extortionists."
While on the surface their moral obligations are clearly different and I applaud them. Hacking without consent or authorization is technically illegal regardless and can be charged but they are less likely to look like the bad guys by not costing, someone or some thing, absurd amounts of money that they would end up paying back like wise there is less fire power against them.