Also, the Salido loss is a huge blemish on his record.
I really don't think it is.
It was his second professional fight, against a solid and ruthless world champion who also failed to make weight and who was allowed to land a LOT of low unsanctioned low blows.
While he struggled in the beginning he was edging it more and more as the fight went on, even making Salido stumble in a couple of moments and going quite close to put him down (the referee Lawrence Cole also obviously tried his best to buy Salido time to recover).
And it was a split decision on top of that.
That's without even mentioning how much Lomachenko improved from that fight. I think anyone a bit knowledgeable about the sport should expect a rematch to be a lot more one-sided now.