Is the interaction between Herald of Ice and Herald of Thunder a bug?

herald of ice and herald of thunder， Their skill tag is' disband ', but they can' herb of ice 'cause abnormal sensing state, and' herb of thunder 'can cause abnormal freezing state. Is this in line with the design concept? If not, please fix it so that they do not cause any abnormal states according to the skill description. Otherwise, please modify the skill description. thank