I mean you might be right but looking at the lead times for a new CPU architecture I guess he will start making a difference in about 3-4 years from now.
Which would still be good enough for Intel, considering their current market share. They'll have a couple bad years but Intel will still be on top if it takes them four years to beat AMD again. Many businesses and OEMs didn't even have AMD on the radar anymore. I'm still waiting for a suitable dev laptop based on ryzen.