Glacial Cascade has a length measure request if you want to use it for huge damage

well before 0.5, I'm just playing some basic skills for fun, but only to find bugs...

this time is: Glacial Cascade

this skill would release a huge spike only at the end of the whole fissure length, mneans as your aoe grows, you have to check the length time to time, especially when you used a Caged God which gives a lot aoe boost.

Why?

When you freezed the boss, you can use Glacial Cascade to damage the boss maybe in one shot, but only if you hit the boss just as the whole length or so, so the final spike can hit it. other wise, nope.

well...... as I remember the Earth Shatter could hit the enemy with the spike no matter near or far, it's a go-to-target skill. but for Glacial Cascade, nope.

is it a bug? or just Dev want us to freeze the enemy then running around to get the sweet point?