depends perhaps on the details: the colour seems to me not that important - but maybe it's just my beginning colourblindness...
I don't really don't mind the color, but showing an exclamation mark is not very smart. An exclamation mark simply means stop or warning.
Since there are already bubbles with a check mark, a question mark and empty bubbles, perhaps the Jive developer thought to make a difference for colorblind people, or black and white screens, by using an exclamation mark - to make a difference of the bubbles beside the color. They could have also used a C for correct and H for helpful, etc., which I think would have been a better idea.
I was just thinking that myself dude... an "H" in a light blue bubble would be better than an exclamation in a yellow/orange/amber (whatever colour it is ) bubble. The tick in the green bubble when it's correct is fine, and easy to identify.
Once you start using language specific iconic abbreviations, next thing you know people will start taking offense.