Donatas Motiejunas gave an interview to a Lithuanian reporter and Motiejunas reportedly blasts Detroit Pistons and says trade rescinded simply because Detroit "changed their minds."
Donatas Motiejunas apparently feels wronged by the Pistons, and he is not being silent after Detroit rescinded the trade-deadline deal that brought him from Houston. Motiejunas stopped just short of threatening legal action against the Pistons, and said Detroit simply changed their minds about giving up a first-round pick.
That is, of course, if this English translation of the original source material is accurate, via reddit.