Yup, I was subbed the entirety of Legion but 7.2 is when there was so much gating there wasn't a whole lot to do, ESPECIALLY if you weren't playing every class. Even then, the Mage Tower and Class mounts were probably the biggest highlight for 7.2.
This is one of the drawbacks of people who choose to have a main, they don't get the benefits of all the work Blizzard is putting in and then some would even take to forums and say content was null.
It's one of the things Blizzard carefully balances I assume, like in BFA there's much less of that, you simply would require 1 Horde and 1 Alliance character to experience all of BFA.