Misuse of taxonomy: Feed handler .inc files should be auto-discovered or a variable at least, not a vocabulary

Don't see how using taxonomy is beneficial here. Confusing IMO. Since if you want to add a new feed_handler you need to develop a new .inc. Really they should be auto_discovered like Views does I think. At least this should be a variable array like

array(
'ATOM10.inc' => t('Atom 1.0'),
...
);