No one cares which mod you run in single player*. It's what you run in multi-player which may or may not cause a problem. In a competitive environment, we should endeavor to make the experience and challenge as consistent as possible for all participants.
*Though, bragging rights are reduced the more automation-focused your mods are, even in single player. It's not as impressive to beat "the campaign" on hardest if you're running all kinds of mods compared to someone who beat it with stock 0ad.