Why my engineered hardwood floor is chipping/worn (abuse or regular wear?)
That floor appears to be of phenomenally low quality, and I have doubts that it's even actual hardwood. I would have expected the broken out pieces of veneer to leave a more fibrous edge. From the shape and coloration it appears synthetic. 

Do you see how the edges of the top layer show white near the missing areas? Wood doesn't do that. That's what shows when the printed laminate wears away. I'm 99% sure there's no wood in this product besides the particle board. Tyson's suggestion about moisture would explain the decomposition at the edges due to swelling. 

Your question isn't really answerable as we don't have all the facts, and it's partly a matter of opinion. I can only say this with certainty: Real wood doesn't look like that, and even inexpensive laminate shouldn't be disintegrating without extreme traffic volume or moisture damage.