the fabric companies who cut the specialty cuts always say the pre-cuts are not intended to be pre-washed- but they also say they will not shrink---they just do not know us quilters at all---
i've had the same thing happen- and the lqs told me not to pre-wash- but also said= they won't shrink...well i did - was using for a swap where the rules said must be pre-washed- oh well-
glad you could laugh it off and still use your pieces- i did too- what else are we to do??? :)