Short answer: no. Despite what many students believe, being good at English doesn't necessarily translate to other subjects at all. Nonetheless, there's no denying that in any essay writing subject, you need to have the ability to construct an argument that is solidly grounded in evidence to prove your overall. For English, it's about nailing the criteria and putting on 'smokes and mirrors'. Yet, the latter doesn't apply for the humanities because as soon as you try, you're shooting yourself in the foot. Markers don't get a single damn on your ability to produce flowery language (though this is important to play the game in HSC English, e.g. "a timeless delving into x,y,z is predicated by exploring the multifaceted nature of human existence") All they care about is whether you have clarity in your expression and get straight to the point. I learn this mistake myself for Modern and Eco where I used my English skills but it didn't result in much, in fact it was detrimental to my writing.
tl;dr HSC English is flawed in that your bullshit will not translate to other humanities purely because the mechanics of essay writing are totally different.