I agree with the decision but i should point out that other weaknesses mention "you may use up to 6 copies of a card (gaurdian angel, rage potion, nymph tears)" which actually means the arbitrary version of may while some mean "must". it would follow previous claims that it since it is a weakness, take the meaning that implies a greater disadvantage.
On another note, most of the things posted in the event rules usually aren't important. Falling empire For example had 9 pages of rules with replies happening all of the time. I didn't necessarily follow every single comment. Maybe it should be advised in future events to have a question topic and an official rules page(questions would be replied to here), so important updates are not lost in clutter.