There's a lot of consternation now about the XP changes, but its nothing new - there's been consternation for a long time about how long it takes to do a TR, and how much time new players or alts are looking at to get up to full power.
So the key underlying question is this - how much time you do think it should take to do a TR? ETR? What should the expectation be? How much is too much, or too short? And what expectations should be on players in terms of how they play, what resources you assume they're using, etc.?
Personally I think an average player, soloing, should be looking at an ETR in two weeks of casual play (a few hours a week), or one week of pushing (couple hours a day for 5-6 days), or be able to hit the 3 day limit if they really grind out over a weekend. HTRs maybe represent double that. That's assuming no pots.