Echo Knight Hitboxes on spin attacks

Hitboxes on his various spin attacks are either bugged or very questionable:

Example 1: https://www.youtube.com/watch?v=h6mBE63gh6s

Example 2: https://www.youtube.com/watch?v=a3ysJwnnoc0

It doesn’t feel right when sword goes through player and nothing happens. Maybe it is because only the tip of the sword counts and i am technically not in the tip arc? I thought so until:

Example 3: https://www.youtube.com/watch?v=UaXcdmY7K-I

There i am hit by the tip portion but also nothing happens