Do those pleasures I have listed lead to a life of secure pleasure [...]
They would certainly believe so. Though in some respects, maybe they have a point, not in their rhetoric attached to such lifestyles, but acting in according to their desires in their own non-Epicurean way.
I don't believe pleasure can be isolated as a sole concept in the philosophy without an extremely vague definition attached to it, let alone through comparison. Instead, it should be tied to ethics and the concepts in the PD's and such. Perhaps it's less "happiness and contentment through my free will and contemplation" and more "pleasure is the active and passive sensation I experience from my study of nature and rejection of the supernatural on top of making choices and avoidances according to my desires."