In this case "your mum" would've worked as well... horrible jokes are horrible <3 :D
Maybe 80-20 sounds a bit harsh... it's just that I have stuff like Peach - ICs or Sheik - CF at 70 - 30, and I feel Yoshi loses worse to Falco than those.
Also, whenever I get hit by Yoshi (outside of DJ stuff) playing Falco, I feel it's 100% on me. I screwed up tech skill or did something ********. Not something like "might work out, I'll just try it... awww, he read it and punished accordingly", but a 100% stupid mistake like "never do that in this situation". Sure he punishes those extremely well on the bird, but there really is little more reason to get hit by Yoshi as Falco than there is for Fox to get hit by Zelda. They just pretty much invalidate the other characters neutral game.
Regarding DL: I don't mind that stage at all. Sure, it can take a while longer if I can't get a dair spike, an edge guard at higher percent where the bair will beat the DJ or some stupid shine gimp, but would rather have to kill the dino right away instead. On the other hand there's so much room to work with and establish a situation where I feel perfectly comfortable going in. The only stage I dislike in that match up is FoD, because the lack of side platforms sometimes makes it less free to get out of bad / too neutral situations :D
Then again, you've probably played a lot more Falcos than I've played Yoshis (one, although that guy lives super close (three minutes by foot), so we tend to play a lot ...
).