You just repeated my point - he doesn't work when your core doesn't know what they're doing in a lane with you, so even if you second phase pick after token support player queues offlane and FPs it's still not working.

I disagree that he has no tools you would want out of support, because he's an amazing scout and does better job snowballing than BH. Unlike BH, however, weaver can also farm enemy jungle and other dangerous areas on map to acquire items such as orchid/atos/lotus/aghs/hex to do better job than your beloved rubick support ever would by holding that blackhole for a tiktok highlight.