Given many "tuners" struggle to do that.....an ecu that does it all on it's own would take a miracle.

And I find it very annoying and misleading that there are ecu makers and suppliers out there that are almost claiming theirs will do that.
People have a far far too high expectation of any auto tune features.

Yes they may work, but they also require manual input of some degree in order to make them work, and then they need monitored to make sure they arent making a fuck up of it !