Nevermind. I mentioned this to someone in support while I was working on a different problem and it is not really a bug, but it could be handled better.
In an example where you are asking for data every 2 hours over the last 3 months, when the database does not have data stored with that granularity (and it won't by default), it graphs zeros for most of the day, but the entire day's accumulated amount in one of the 2 hour slots. It might be nicer to have it graph each day as a flat, full, rectangle that has the daily height divided by (24 divided by the hourly rate). So in this case Daily total divided by (24 divided by 2) or Total divided by 12. This would at least level the graph out.