^^this. From a hardcore PvE'er's perspective, it is strictly a casual game that happens to require a subscription. That may be satisfactory for some of them medium and maybe even long-term, but I imagine not many of them at all.
From a long term hardcore perspective, ESO is strictly PvP/crafting or GTFO at this time. Also, not many game developers care that much specifically about hardcore players and there's an argument as to whether they should given they would be such a low proportion of the playerbase.