Well one is quite easy to script yes. One could even register a new batch render type for this. But yes no biggie its just a simple for loop.
No maya at right now hand but its very simple to do all you need to do is echo all, copypaste the command that executed the bake and put it inside a for loop that increments time by one frame. for x frames.
Maya scripting doesent get much easier than this. This is by teh way a sdkill one can learn in 5 minutes and benefit hours every day immediately by knowing it.