I agree, its for the same reason that trailers now have little trailers in the beginning. I mean really, a trailer for a trailer? Apparently its required to keep retention up because even adults are now children that need to be spoon fed.
Why am I on a platform that mostly delivers slop? That's a trillion dollar question. The advertising industry won.
Also because if I was on a non-slop platform, it wouldn't be showing me your ad because ads are slop.