Honestly, there will ALWAYS be top tiers in any and all fighting games. Occassionally "God tiers" but as long as the fighting game offers some form of balance or other characters that can indeed counter a highly annoying character, it's all good in my book.
MK
A was pretty well balanced though, Scorpion though you could just push, hell fire, push, hell fire repeat...one thing I didn't like about MK
A the counter/parry should have been for everyone like MKA and the push I wasn't too crazy about in cases where it gave you a free hit such as Scorpion's for example