Glyph of CA is actually amazing, especially at low gear levels without heaps of haste. Go put on some 463 gear and tell me how many starfires you get out in 15seconds. It also helps pvp immensely, smart players will cc you during CA and this gives a ton of breathing room. I love this glyph idea it's genius and helps a lot of weaknesses balance has with low amounts of secondary stats.
the only problem is losing nature's grace so not sure how having it last 60 full seconds is helpful. A lot of things are unclear atm