I think that's due to the hacked schematics corroborating what the pundits had been saying.
Re the M1 13 Pro getting EOLed... Here is the recent rumor from Mark Gurman.
"Redesigned MacBook Pros are expected to debut as soon as early this summer, said the people, who requested anonymity to discuss an internal matter, followed by a revamped MacBook Air, a new low-end MacBook Pro and an all-new Mac Pro workstation."
Does the low-end MBP mean an M2 13inch? Or does it mean a low-end 14inch? And if it's the 14, why not just release it with the high ends? Maybe the want to create different release schedules for high-end and low-end computers. Seems to be happening that way with iMac and Mac Mini.