Lol - and I thought that I got a little risky with runnin' my tires down to the cords. I will admit, though, that I did have one tire that did something similar - it looked okay at the start of a ride and was showing cords all the way around at the end.
The Galactik is essentially their RDO tire, isn't it? Probably not too much tread to begin with, so not surprising that you didn't get many miles out of them.