which I would replace with a cup or so of wine.
I didn't want wine in this dish. Most red gravies don't have wine. It was omitted intentionally.
Needs a solid pinch of red pepper flakes
It does not. I achieved the flavor I wanted. I've made this before.
add a little more herbs
It has a lot of basil and parsley. The ommission of other herbs is intentional, as well. This is a certain type of red gravy. It's not meant to be an herby peppery wino spaghetti sauce. I make other types of red sauces with more seasonings and wine.
I don't think anchovies are a must, but I will try it in a sample portion because I like that flavor. I don't want it in the entire dish, though.
You can make yours your way, though, and I won't give you a list of what you should do to make it taste good to me.