I take issue with the notion that Estrich is persuading the "young producers" to change production to her view. If I want a left wing view I would watch CNN.
The only statement she makes of importance is the last one which says ALL the other media outlets are the same when compared to each other.
I read the piece to say that she picks her battles somewhat carefully, but when push comes to shove, FOX (and those unnamed "young producers") can be persuaded. That's not a bad thing, as long as she picks appropriate battles.
If the producers don't hold sway when they have the correct opinion, they shouldn't be producing. If she can't hold sway (or anyone who holds the correct position, for that matter) as appropriate, then FOX is no better than the rest.
For my money, FIX has the best balance, although I have seen them swinging further left than I'd like from time to time.