Capcom has taken plenty of time and effort over the years to make sure that its Street Fighter line of video games is as balanced as possible.  Tiny little tweaks are made across successive releases to offensive attacks, defensive strategies, and other variables to ensure maximum fun and fairness.  Take a moment to be glad that Capcom cares because as GameSetWatch points out, the alternative is downright insane.  Consider a hacked version of the arcade mainstay Street Fighter II: Champion Edition dating back to 1992 dubbed the Rainbow Edition in which all of the rules go out the window and most anything is possible.  Want to change characters in the middle of a match?  Go for it.  What about multiple homing projectiles?  Done.  Mid-air special moves?  Granted.  Check out this video (one of many floating around out there) of the Rainbow Edition in action and I think you'll see why properly balancing Street Fighter and games like it is an essential part of the development process.  The alternative is a flurry of frustration inflicted one credit at a time.

Fun fact: the existence of unlicensed hacks like the Rainbow Edition helped kick Capcom into releasing more actual official upgrades for Street Fighter II that added some of the tricks and glitches (such as Chun-Li's Kikoken and Dhalsim's Yoga Teleport ability) that started as hacks and mistakes.  Some even cite the speed tweaks in Rainbow Edition as inspiration for the turbo addition in Street Fighter II Turbo.  It seems that in an indirect way, we have the Rainbow Edition hacks to thank/blame for endless revisions to the Street Fighter line.