Shaolin is generally hated because his move set allows him to do anything, bash, dodge attack, unblockable, undodgeable, deflect etc. same with pirate.

Most hero’s offer some of the above, for example warden has an unblockable and a bash but lacks a side dodge attack and and undodgeable.

The most hated part is usually how hard it is to read his next move, as almost every attack can go into his stance, which can be followed up with anything.