Medusa recovery on heavy attacks

I was having a bit of practice against Medusa and I've noticed the fast recovery after the heavy which got me few times unprepared so I recorded it on a video. Do you think I was going too slowly after those heavies or it's the recovery time bug someone was pointing in a previous post?
https://youtu.be/GwclD4DIaBA

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https://forums.playcontestofchampions.com/en/discussion/45100/ai-fast-recovery-after-heavy-under-investigation#latest