The situation with non-official sellers is also out of hand. For some odd reason, they grind off the markings and re-laser them. On some chips, the grinding is not deep enough and the old markings shine through. Just the date code is different. On some chips, they have messed up the rotation, so the pin1 is at wrong corner now. I'd rather take the chips with original and older date codes... Or mixed date codes, as they are probably gathered from multiple sources or desoldered. This has now happened with multiple parts from different sources. Some MCUs have also come with something programmed in them and fuses locked, luckily they can be erased.
If this is the only way to live at the moment, i'll take it. But this situation irritates a lot, if you have to solder on some chips in a rotation, that looks wrong when looking at the mounted board.