Because the comment has nothing to do with the parent.

The fact that uBlock uses ABP lists is completely irrelevant. People choose uBlock because it uses compute resources more efficiently. Regardless of the list.

It's not irrelevant. People may assume they are switching to an entirely independent project when moving to uBlock, but a dependency has now been pointed out. Whereas previously, I may have assumed that if Ad Block ceased to be, or their servers were having problems I would be completely unaffected, now I know I might be. This is useful information for anyone who "switched to uBlock Origin and never looked back."

Because while some of the facts are true, most are are not and are baseless speculation. As it stands, the "acceptable ads" list is not in uBlock Origin.