the risk of cancer for a "benign" FNA ranges from 1-10% depending on the pathologist. This is a typical description for a benign FNA and Hurthle cells are normally found in the thyroid and often over-interpreted as "atypical".
I can start by mentioning that thyroid cancer is a lot less of a worry other cancers. Most types have a cure rate at stage I and II of 100%.
I think your doctor is right, with your biopsy results and how your nodules look you have low risk of cancer and if it turns out the the biopsy was wrong, the chance they can cure you by a removing your thyroid and a dose of radioactive iodine is 100% Either way you're good. And there is no harm in waiting for what the ENT guy says.
If the nodule on your left is causing you discomfort, the ENT might suggest removing that half of your thyroid or the whole thing. If they do that they'll send it to pathology for a really good look.
I suspect you're getting good care, and the ENT can advise you on whether surgery is recommended. Cancer isn't really that much to worry about.
I think for a lot of people with thyroid cancer their thyroid is working just fine otherwise, so having to have it out is a bummer, because it means going on meds, and potentially not adjusting very well to them. In your case your thyroid is already trouble.
Good Luck.