My take on this:
AMSOIL made a filter that filters so well that the sump oil will be cleaner than most oils out of the can. When a small filter is combined with a dirty engine, a lot of stuff will be caught by the filter. At some point, in some engines, the filter will become overloaded.
The pressure sensor light, if it comes on, and if it is noticed, is often the bearer of tidings which arrive too late.
Personally, I have never had a dealer or customer who had this problem. However, I certainly accept that it does exist. If I had a Honda or Toyota, I might run longer than recommended, but I [censored] sure am not going to recommend trying to run longer to a customer.
From talking to some of the folks at AMSOIL a week or so ago, I think it very unlikely that there will be a 25,000 mile/1 year change interval for the teeny filters. I would not be surprised to see a 12,500 mile/6 month filter interval for those after the redesign is finished. and I would expect the efficiency to remain the same.