I was going to go with "no, because for starters, it'd be a legal, logistical, and inter-personal nightmare", but David beat me to it.
The other side of it is, why do it in the first place? Tying different creative endeavors together doesn't necessarily make them better than the sum of the parts. One of the things that makes mods great is the amount of freedom they have in doing things, compared to core game, which has to be Responsible. One of the benefits of vanilla being, well, vanilla, is that it's a more tightly controlled and cohesive experience. Mods are also able to have their own release schedule etc.
It's also quite an assumption that mod creators would want to do that in the first place, given what it means for their mod.
There's also me not wanting to do it, for similar "I'd rather make up new stuff for the core game myself" reasons
I'm sure the suggestion came from a good place, but all in all, it's just neither practical nor desirable.