Good god, those are some pretty bad reviews of the Thermaltake cable. I expected better from a well known company than to source from the cheaply made $3 risers.
FWIW my Sintech cable works very well with a 1050 which draws all its power from the motherboard. Mine's only 5cm long, though.
I'm not surprised by those reviews. Thermaltake pretty much makes subpar crap across the board as far as I'm concerned.