Where is the %()¤! Legion now?

The pre event for the expansion felt great with how it put out the atmosphere with how there was invasion on the two main continents. The Broken Shore felt desperate.

But right now, with the pretty silly Darkmoon Faire events and the Hollows End event...it feels as if the Legion been defeated and prove no threat. The whole Broken Isles seem to have a slight turmoil only. This is a big immersive breaker, not does it help that the whole island feels like it got a few pockets of Legion left, fighting till the bitter end. Is this supposed to be the might of the legion? A big dip after the invasions to suddenly go down and then suddenly go up when Blizzard feel done with releasing more content?