1. This same thing occurred every time a patch for GTA 4 came out. It isn't new. Patch comes out, breaks scripts. Scripts are updated. Rinse, repeat.
2. R* never said they support mods. In fact, they say that they are unsupported and will break - this does not mean they are actively against them. This isn't new.
3. They aren't deliberately targeting mods.
4. Games get a lot of patches over time. Get used to it - back up your .exe and update files if you don't want to wait for the scripts to be updated.
5. Yeah, waiting a day is going to be the "Downfall" of mods. LOL