I believe you are correct TM, last time I did it was the same thing. I've never used a script for training fishing in fact, always done it with a UOA/Razor macro down in "8x8 alley" off Moonglow or 4x4 off Magincia docs.
Used to be that you could hire a NPC, tell it to guard you, and deep water fish off the Mag docs. Anytime an aggro popped up the NPC would guardwhack it and the SOS's ended up at your feet. They've since changed it to shallow water and, as I mentioned above, you can 4x4 off it at a few spots so, set it and forget it! Go to bed, be 70 in the morning.