Should the new Elder Dragon buff's execution mechanic have limited range?

I look at how it works and I worry that it would make Teemo, Karthus, and other Champions with super-long-range ultimates obnoxious with the execute. Making the execute have limited range would require more risk, rather than just having a Teemo who has his enemies walk into a bunch of mushrooms across the map.

Another reason for why the execute should have limited range has to do with seeing it coming. The wind-up is supposed to let players avoid it with certain effects like , but if the attacker is too far away, you won't be as likely to time your defense properly since your visual cue will be MIA.

This wouldn't be too unreasonable, IMO.