I'd say that's alot of bleed for high end keycaps but given the relatively low price for an assembled keyboard. I dont think these where made in the best quality. I was really hoping they'd be double shot but from the picture you posted they look very thin
Had the same issue with a few Tai Hao sets. The bottom line is that light bleed is a problem with many colored key caps which is why researching them before you buy is really critical.