LB, Talon and Kass can't have silences

The removed silences were ALL point-and-click ranged abilities (one tied to a gapcloser), while Ekko's can be dodged and also cannot be used on-demand because of the cast delay.

It's not point and click. It's hard to predict where your enemy will be in 3 seconds...

Ekko's stun, while strong is not guaranteed. Where as LB, Talon, and Kass were point-click and nearly instant.

Bad comparisons are bad.

You mean the stun, which many other champs have, and is delayed by three seconds AND you have to be in the circle at the same time as Ekko 3 seconds after he cast it?

Learn to play.

The only thing that's annoying me about Ekko's stun is how short the actual warning period is. You see his mirror image three seconds before, true, but you can't see where exactly he throws his field till 0.5 seconds before it lands, leaving you somewhat not enough time to really react to it.