As an
main I do agree to some degree but a lot of those champions either have to use an ultimate for their way to get past the wall or is a bit more situational to escape it. Though the people who can easily escape her wall on a low cool down basic ability are very annoying to fight, which is why I consider
as the 2 biggest counters to Anivia (Fizz can be played around but Kass is annoying as hell..). And I know I included Kass in here and his "escape" isn't a basic ability, but his ultimate is on such a low CD it might as well be considered one when talking about escapes.
I don't feel they should do anything to her wall as it is a very strong ability for a basic ability, though if they were going to "buff" it in some way, I'd be fine with them making it so Anivia can destroy the wall herself by re-activating it again (Like Jarvan's ult) though that might be a bit strong to.