Good suggestion Champ! With tribes and communities now being a little more of a "thing" and the direction that STEEM is going in, that would probably make sense just to keep it in the top 5 tags.
Think the rule of it being "first" was a relic from pre HF21 but we are fluid so appreciate the suggestion. We will have a panel discussion about it!
As for the amazing addition to the prize, THANK YOU!! We really appreciate that and the more people you can squash in this contest competition you have, the better :P