Older content would be more or less be for glamour purposes for players who have yet to grab armors from Coil. You do not need Coil to hone your skills as a tank. Any dungeons works. If SE did not include ilvl115 armors for sale for cheap, players with less than stellar ilvl would have a hard time with the mobs in HW as they will be a challenge to kill for anyone that is under ilvl100. Theres also the ilvl130 poetic gear that was available before 3.0 hits so your "unhappiness" is sorely targeted at not able to find people to do Coil with you. Kind of expected that in the new expansion everyone would be doing the new content instead of queueing for old raid dungeons don't you think?