Bug Baldur & Taunt

A few minutes ago, on an assault, my Ludwig’s Taunt was activated, but opponent’s Baldur’s effect targeted another hero of my team. I won that battle thanks to this, but I think it could be a bug.

I read somewhere that the side effects of an ability are not affected by Taunt, but also read that a similar problem with Queen of Hearts’ minion was solved, so I ask here just in case.

This is working as intended. Per Ludwig’s taunt, as written on the card, it only protects against Special Skills. The damage from Baldur is coming from a buff, and is not SS damage. It works the same as Guardian Hippo, S5 passive damage, etc.