Yes, agree with you on that. But even so, there are cell fusing options that will work up to 15A. I don't work with anything near that. The Battery Hookup ones are good around 8 Max, with some heat build up and no air flow. But the ones Stucco was using is probably good to like 50A. Lol...Depends on what type of pack your building --- If you're using high drain cells ( for instance Sony VTC6 ) in a 10S6P battery pack to run a scooter.
You have to have a fuse that will hold up to the amp draw you're needing --- So if you use that thin wire you'll blow all the cell fuses on the first start up-- If you use all VTC6 cells in a 6P configuration and need 30-35 amps for start up it's perfectly fine --- But they need to be tested and resistance matched -- his problem was he had cells that looked like laptop pulls , maybe old heaters who knows
I get a kick out of people selling and using cells they call heaters -- they are garbage