Maybe some big OE are toying with yet another 'standard' in order to set themselves apart from the other players in their field or from the past ie, planned obsolescence.. But when looking at the plethora of forks for gravel and frames for gravel and wheelsets, it's pretty clear that 142 x 12 rear and 100x12 front are absolutely dominant and completely adequate.
But, I don't understand the acceptance to buy a bike that you know has **** wheels, and you know you are going to buy 'better' wheels sooner than later, and when you do, and then try to sell the absolute **** OE wheels, you won't get **** for them. Many OE wheels cost the brands well under $100 a pair. Why not take longer, think more, sell extraneous stuff, spend whats needed the first time and be done with the bike for years. It will cost less in the long run, last longer with higher quality parts and make you happier from the first time you ride it.
DT