College Board's Transition from Physics B AP to Physics 1/2 AP an Epic Failure?

Why did College Board change from Physics B to Physics 1 and 2? When I was studying for the Physics 1 exam, all the current college textbooks I looked through were just like Physics B( the review books weren’t good for the exam, so I looked at some other textbooks). Yet, the College Board changed it to better reflect college coursework.

Not only that, but I haven’t even seen a college that gives Physics 1 and 2 credit but does not give Physics B credit.