I literally explained how he was a selfish pick in my first paragraph. Please read:
You wont see yas period unless he's completely overtuned because he's a selfish champion who brings very little to a competitive team. Not only does his addition essentially require the entire team to play around him and pick around him but he's easy to focus and his being picked means that they are literally strong armed into having a full AD comp.
If you need it explained for you better, I will literally list the reasons as to why he is a selfish pick.
- He requires a team to specifically craft themselves around him; he requires knock ups, peel, people who can engage and peel for him, an AP champion somewhere other than mid(where he will likely go) or either he has to go bot and they have to risk losing long range siege.
- He is incredibly easy to focus; experienced junglers will eat him alive as while he is mobile through minions, he is otherwise pretty immobile and has a tendency to push the lane because of the nature of his Q/Nado and the dashy dash through minions
- Yes, actually. He only brings damage, unlike many of the ADCs that LCS pros pick(Varus, Cait, Ashe, Tristana, Ezreal, Lucian, Xayah, just to name a few) who bring damage, reliablility, safety(Tristana, Ezreal, Lucian, Xayah can all peel for themselves relatively well while still pumping out damage; they don't have to be in the enemies face and pray they don't die and unless the enemy seriously over commits to them in a fight(which pros can't really afford to do) they don't need to be constantly protected), utility(Varus, Ashe, Cait, Blue Ezreal, Xayah all bring hard cc, zone control, or soft cc and in more reliable amounts than Yasuo), and seige capabilities. Yasuo brings just damage and the need to keep some dashing moron alive because he has all of your teams gold.
Yasuo is a seflish pick both in competitive play and in solo play. There's just no getting around that. He can't roam easily to provide pressure around the map(as is the purpose of midlane in recent times) and he's very easy to gank because he just naturally over extends. He is only picked in LCS if he's grossly over tuned.
Also, I like how you're like,"DON'T FOCUS ON THE ADC THAT HAS A SIMILAR PICK RATE TO YASUO BOT! FOCUS ON THE THREE WHOLE MARKSMEN WHO HAVE PLUS 10%!" Because one isn't new(Kai'Sa), Reworked recently(Ezreal), or consistently rebuffed and popular(Lucian.)
But not Ashe? fine. Varus has a 4.35% pick rate, with only bot lane to go to. Tristana only has bot lane and only has a pick rate of 6%, Twitch can only go bot lane and it not be cheese and his pick rate is 3%. Kalista literally can't go anywhere but bot and has a lower pick rate than Yasuo who has two other lanes to go to at 1.39%. Kog'maw, 1.23%. These are all ADCs that can only go botlane having a similar or slightly higher than Yasuo(who can go top and mid as well) and many of them have a lower winrate than him, in their own lane. Twitch is the only exception as he matches Yasuo's winrate pretty well. But also only barely beats him out in pick rate.
As for Heimers .60% pick rate, he also has a 54% winrate. He's doing fine bot lane and considering his overall pick rate in the game is low anyway, the fact that he's played bot an overwhelming 20% of the time he is played is impressive as shit: http://na.op.gg/champion/heimerdinger/statistics/adc
20% of his over all games are played as the APC bot lane. And it is by far the highest winrate position he is picked in; top lane he has a sub 50% winrate and midlane, which he also has a tiny pick rate in by the way, is a 53%. He has a 54% winrate bot lane, where it shows he is picked more often than in midlane. Trying to use Heimer when he's literally one of the lowest over all picked champions in the game really doesn't support your theory in the least; of course he has a low pick rate bot lane. He has a low pick rate everywhere. He's only picked 3.20% of the time in any game. Meanwhile, yasuo is at least picked 17% of the time; we can actually discuss and argue that his pick rates matter.