I don't really get your logic at all, just plain dumb. If you want to disregard five seasons worth of data with 537 minutes with us you can do that but I really don't see what's funny about that.
Oh look, his xA numbers have taken a massive jump this season too! It's a really small sample size but either his attributes fit Howe's system better, his role was different at Leicester or he links up really well with Isak and Gordon (or it's a really small sample size). I've definitely been positively surprised with his overall contributions and not just his finishing, hope he can keep it up. 0.95 non-penalty xG+xA per 90 would mean he's an absolute elite player statistically in this league. Isak is at 0.78 and Gordon at 0.58 just for reference.