But still, not something that should be baked into the core platform. Perhaps your idea of how it should work is different from a large portion of merchants. Why should one version or the other become a core part of the platform for every merchant.
Even if the module providing a 'core' feature is written by Magento, it shouldn't be in the core project but should be treated just like any other 3rd party module.
Ultimately you want a core platform that is rock solid and extensible. That's what a good integrator then build out either from the low-end of just adding and configuring OTS modules to the high-end of bespoke modules.
