These pundits know which side of his bread is buttered. He knows that his clients were caught off-guard by the M1 announcement. He needs to give his clients enough time to sell their Intel stock before it becomes conventional wisdom that the legacy chip makers have a business model that doesn't work.
The history of the tech industry is dotted with pundits nay-saying anything new from companies they aren't in bed with. Eventually they can't deny reality any longer. Through the magic of the media's short-term memory they change their song and deny they've every said anything else.
I remember in the 1980s when the top pundit of the industry was John C. Dvorak. Everyone read his column. EVERYONE. The Amiga was a potential threat to John, who was aligned with the MS-DOS world. He wrote many columns about how multitasking was stupid because "your desk can't fit more than one keyboard and mouse". Yeah, that was his reason. Of course, once MS-Windows arrived, suddenly his column was about how multitasking is this new thing, the best thing, the thing everyone should have. If you don't have it, you're an ignorant loser. I remember telling my friends that I wish I had saved his old, anti-Amiga/anti-multitasking, columns because I want to show up at one of his public appearances to ask how MS-Windows allows you to fit so many keyboards on his desk.