Yeah, i think YS is pretty bad for falco vs fox now. Mang0/wes rarely counterpick it anymore and have commented that falco needs room to laser b/c he cant just overwhem fox anymore.
The biggest difference i find between foxes that i can and cant take to yoshi's is how well they can shine oos. B/c i cant laser as much, it means falco has to use a lot more aerials and normals to fight fox straight up. Its very hard to make every aerial safe when there isnt much room to manuever, and a single shine sends u straight to the corner or off the stage. Fox also gets a small boost from upward kills, and even though the wall buffs falco recovery too, fox's revovery is pretty frustrating when he can tech all the way down.
Falco combos are still brutal on YS so it can be a really strong cp against the right player, but i dont think its a true cp to the character. BF/DL or possible PS seem like the strongest picks imo. I agree with pretty much everything else, its a good list