>>It's been more than the accepted length of time for approval and/or regection.
No such thing as an "accepted length of time" for review. Could take minutes; could take years.
>>Can somebody higher up the ODP food chain perhaps "prod" the carcass to see if it's still breathing?
If you're asking someone to kickstart the listed editor into editing, no can do. Editors are able to do as little or as much editing as they want without pressure to do more. If you're asking someone to go in there and review it now, that's not the purpose of this forum. You can, however, ask for an update on the status of your submission -- that would be that your site is still waiting for review in that category and will be reviewed whenever someone gets inspired enough to tackle the category.