PvP Shoulder Tackle bug

Frequency: Always
World name: Louisoix
Character name: Reah Arcadia
Class/Level: Monk
Area and coordinates: Wolve's den, Frontlines, The feast

When having tried to find a way to play monk effectively on PvP i came across a problem with one of it's pvp skills "Shoulder Tackle".
That it would only work while under the effect on Fists of Wind, it does not change while changing to Fists of Earth and Fists of Fire.

The only way to be able to use the Fire and Earth Tackle is by making a Pvp macro.

Code:

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/micon "Shoulder Tackle"
/pvpac "Shoulder Tackle"

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This does come with it's own issues as not seeing when it is recharging or seeing how many charges i still do have as well as it not changing icons to it's respective attack.
As it stands now, monk may be incredibly difficult to play in PvP without it working properly depending on the situation a player may be in.

It this intended or just a bug?

Thanks in advance:)