Hi Doug,
Thanks for the love :) it is very nice to hear it is valuable!
The short answer is no. The long answer is that we also provide a free (no ads, so really free :P) app called Decaf Monitor that you can use to monitor pages/ports. This app has more features also giving more control over alerting. It might help you get rid of this annoyance. (If you use Decaf on the instance's public DNS it works the same, except that it doesn't check the EC2 status of the instance.)
We do plan to merge this functionality to Decaf, only no idea when.
Groet,
Jurg.