In the United States the largest internet provider limits users to 1 TB per month then charges huge fees if you use more.
Not even close - even CELLULAR provides have higher limits than THAT.
BURST mining doesn't use a lot of bandwidth - the only thing you are sending are a nonce and a bit of "who is sending this nonce info" when you find one with a low deadline, the nonces aren't all that big.
I agree with you in regards to bandwidth used by BURST mining or any mining in that regard but there are actual internet providers that have limits like that. Cox Communications literally just switched to having limits and I even believe it is now 1 TB per month but don't quote me on it. I will look it up when I get home to make sure.