Of course defects are not acceptable... The point is we are talking a company that struggles to even deliver phones to those that have ordered them as well as those that took a IGG perk for one. And for the Pro1X about devices that for some can not even be used as an ordinary phone due to some network stuff (that we still really do not know who affects and who does not) and in THAT context, display issues in the corners should be ranked as "a minor cosmetic blemish".
But sure any one affected should feel free to return the phones for a warranty repair/replacement, and for a larger company