I didn’t know there was a minimum number of games needed to be played to be impactful.
I genuinely don't know if you're being intentionally obtuse or not.
You're pointing to 12 game and saying he is definitely an impact player. Well 5 of those games came in the Tampa series where like everyone else he was ineffective, so it's really 7 games. In those 7 games was he an impact player? Yes, he was, the sheer volume of his production makes that true, let alone how timely some of his goals were in big moments.
Seven games does not clearly define anyone as an impact player. It does not guarantee he will be an impact player. You're treating this tiny sample as definitive proof of your argument, all while ignoring he was also remarkably lucky to be so productive on his shots, at a rate not even Wayne Gretzky himself could sustain. If he had scored at his normal 10% you would not be saying he is an impact player. If you see a .220 hitter bat .400 for a week do you think he is the next Ted Williams? If you see a .330 hitter bat .500 for a week do you think he is Babe Ruth reborn?
Maybe he will be an impact player. I'm not saying he won't be. The point is it remains to be seen, no matter how much you insist we already know this because of what he did in one playoff series.