Just tried it a while ago, OoT3DHax still work after using basicsploit as entrypoint. Tried it several times, no freezing whatsoever. I think sometimes OoT3DHax do gives random freezes just like menuhax for non-A9LHed consoles, maybe you should retry for (like) about 5-10 consecutive times, if it really doesn't work then we can confirm that you have a (minor?) problem. Also why don't you try to delete the save from your OoT3D cart then re-inject the payload. Hope you fix your prob.
The installer do work. On a thread I browsed a few days ago, the OP required us to download the "latest" starter pack but as I was checking it out, nothing was changed, not even file sizes. But I still went through on replacing my old starter with the "new" one I just downloaded. Then I injected the payload using the installer and I was able to enter the homebrew launcher.
@himuradrew but if you want I can PM you the save files I compiled which contains the payload. You can just inject it using JKSM.