Goram is a great HOL hero but no, atm goram is maybe 4th most needed hero for HOL. I feel Ling ling and Vernos are the absolutely necessary heroes right now. Hurok on the other hand is an above average arena hero IMO.
You are right, but I forgot to be more specific about my lvl and about comparing two heroes still unreleased for free. Lingling and Vernos I agree are an absolute necessity but they are obtainable without diamonds. Since I unlocked HoL and until my current lvl, 89, you simply cannot get in the Top rankings in HoL, RotA or Raids without Goram. Even if you have Hurok for HoL, if you don't use Goram you'll get a mediocre result. In RotA against Slim and Serafine Hurok is nearly useless, but Goram is necessary. Basically I have to think everyday about where I want to use the best hired Gorams depending on where I want a better score; this is why I feel he is more important. I don't disagree using Hurok feels like cheating in some HoL though, but I don't think he is more necessary than Goram at least at my lvl.
Maybe they could make his energy bar decrease faster in HoL so more coordination is needed with Lingling to survive an ultimate, this way he could remain a HoL hero without being 0 tactics. Or just remove his ability against bosses and problem solved I guess but a lot of people will complain, and the potential double purchase events will lose a lot of value lol.