You know what they meant by the first one. The second one is about people not being interested in dumb products like the Logitech AI mouse. Corporations are all jamming AI into their products and marketing materials not because users like it (they don’t) but because they hope it will attract investors. So AI is more interesting to investors than to people who don’t want it in their mouse.
It would be a single point of failure for many apps in case the curators of F-Droid were dishonest or hacked. They could insert bad things into lots of packages without having to change the public source code. But it also becomes the only point where malware or backdoors could be inserted that way, instead of having to trust every single developer to build honestly off the source code, which we’d have to do if they just stuck prebuilt binaries up there. I don’t know how rational I’m being, but it makes me trust F-Droid apps more that they build each one themselves.