yes, that can be true, but as long as the plant can handle being big it's ok.
i am going to keep these small though.

here are some pics of the bent plants now that they have started to grow some branches. the pics are not quite as good because i had to use a different camera, but they're pretty good. you can see a difference between the ones in the ground that are tied down and the ones in the pots that are not. i planted the ones in pots in the ground today though, so in a week or so i will be tieing them down too.