A good offensive player would at least be aware of what he would have to do to be goalkeeper. The hockey player would probably be more like autofill rather than having to play a different champ, and autofill would be forcing so many more people into support if more people were dodging, which would make people dodge more. If your champ gets banned you should have other champs that you can fall back on to be able to play and enjoy, and help the team. I personally enjoy playing Lulu, but she's obviously going to get banned, so I can also play Tahm Kench, Braum, Rakan, Soraka, Bard, and Sona, so that I'll always have a champ that I can play and enjoy playing, and I'll be able to fit into my teamcomp better. If you can only play one champion, and must dodge if you don't get that champ, you are not only forcing people into longer Queues, but you are a detriment to your team. Any good player will be able to play more than 1% of the about 130 champs that we have. It's even worse that you want your champ to not get permabanned, but you will also be reaping the benefits of being able to ban a champ every game as well. You can actively ban champions that will counter your champion, and then just dodge when you don't get your champ. Do you not see the problem here?