Can Cho'Gath's Enemies Get Some Form of Feast Indicator?

I've not often had to play against Cho'Gath, but very recently a match stood as an exception, and one thing that irritated me was that there was no way to play around Cho'Gath's Ultimate Ability, Feast.

There was no way to know if I had low enough health for him to finish me off with an R press, and, as a point-and-click ability with next to no delay before it happens, having zero information besides "it might be up" is not fun. Having the only tactics available for dealing with Cho'Gath being "avoid him or have teammates all-in him, no matter what situation it is" - is not fun.

If I'm not mistaken, some while ago, Cho'Gath was given a personal indicator for when an enemy was low enough to be finished off with Feast - that he alone gets that, while his enemies are left completely in the dark about how much health you need to be missing to be instakilled by him, is more than unfair.

Even Garen and Darius have pseudo-indicators for when you could die to their Ultimates, with Garen's being the Villain visuals flashing over your head at low health, or Darius' Hemorrhage stacks capping off with that glorious clamor and a giant, bleeding axe above your head (not an actual indicator, but a fair enough warning to bail) - and yet Cho'Gath, with the shortest cast time on his own personal execute, gets to be the only one to see his execute-ability?

I'm not saying this has to be dealt with immediately, nor am I saying it has to be dealt with in this specific patch, but honest to god, Cho'Gath's victims need information about their own safety.