"Developer Comments: Invincibility on Shoryuken attacks has been a polarizing topic. For players who learned how to use these attacks in Season 1 as an anti-air or counter attack, this change has severely affected their success with their favorite character. Conversely, those who have had to fight against these attacks, completely praise the changes as they felt meterless reversals were far too strong."

I have never heard anyone complain about meterless reversals in a technical sense. I've only heard complaints about them being mashable like in SF4, or complaints about the individual player doing them.

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