None of my cooking contains " mixed herbs". Vile stuff.
Both bolognese and chilli can contain oregano.
I put fresh basil into my bolognese just before I serve. It doesn't go into the main batch I freeze.
The former has mixed herbs/basil etc what is the etc?*
I use my frozen sauce for chilli- I add chilli flakes, kindney beans cocoa powder and cumin.
How is that different from your chilli?
There's nothing wrong with mixed herbs if people want to use them. It's just some herbs, mixed together.
I've never put oregano in chili, so that's one difference.
But basically, what you are freezing is not Bolognese in the first place, it's just mince cooked with tomatoes sauce. Which can obviously be changed into Bolognese (by adding basil in your case) or chili.
Re "etc", I'm sure you are aware that people use different things in their cooking than you or I do, right? I mean, I don't make Bolognese anyway but I have had it with rosemary which was very nice.
How your chilli differs is that I don't put oregano in it, nor chocolate, I usually put fresh chilies and chili powder as well as cumin, which I prefer to cook into the sauce, not add later.
So, in your world, batch cooking means "a load of stuff that all tastes the same".