Should Yummi have a visual cue while on an invisible target?

I've played against Yummi a fair bit as a support main. Its gotten a bit to getting used to the way she plays a lane, and while annoying, it is winnable. She seems fair to play against but i've had games that make me question her a little.

Playing against her when she has champions on her team that can go invisible ie twitch, Eve etc is kind of unfair. Most of the time they'll exploit the fact that Yummi herself can go invisible and usually engage with a yummi ult and get free picks. The obvious argument of using control wards on the map and oracles around your team is a fair one to make, but it would be easier to use some sort of sparkle animation on yummi to show that shes on an invisible champion.

A small sparkle animation every 3-4 seconds would be a lot more fair than a completely invisible yummi imo. It leaves the option viable to yummi but it evens the playing field for adc's and supports that have to play against it. The only other way to see her is if she is in invisibility is if she uses an ability, but no sane (sanity in league lol) player would give away their position.

It may be a bit extra to add this to her but i think its a detriment to the bot lane.