If Ash catches Absol, it'll make up for him not to catch Flygon, if Go is the one catching Absol he will receive many negative backlash from viewers. If Hoji is the one catching Absol he will have a debate from both sides(People who wanted Ash to catch it and people who doesn't mind Hoji catching it). If Ash doesn't keep Absol(by either releasing it or giving it to Hoji) many fans will throw a tantrum, if Go doesn't keep it, Go haters won't mind that. If Absol is a POTD(which means no one catches it) the episode will be treated as a filler or will receive negative review....I think.