The problem is that the files still need to be checked for copyright status and duplication, so it is mainly a difference of putting the information directly in the submission vs. in a table format to be processed by the bot. Considering the number of possible factors (since submitting those files are akin to normal scores from the internet; they have no inherent order or set), a bot may not yield significant benefits. However, I haven't thought much about this, so I may be wrong... if you can think of a way in which the bot can automate the process greatly I think it'd be a fine idea! In the meanwhile I think it should be done normally (manual submission).
By the way, do you want in on the project too? That way you can also check to see if you can automate it somehow.