Non-Assassins Being Impacted By the Stealth Change

For those that don't know what I'm referring to:

Invisibility - shorter-term in-combat Stealths that make champions completely unseen such as Kha’zix’s Void Assault. Camouflage - longer-term pre-combat Stealths that can be detected through proximity such as Evelynn’s Shadow Walk. “Pink Wards” will no longer detect Invisibility next Pre-Season

The list of non-Assassin champions affected by this are:

The five following champions that aren't Assassins will be impacted by the Stealth changes next Preseason. Jhin and Wukong are only minorly affected since True Sight is not often related to countering them, so I will focus instead on the three major ones being: Teemo, Twitch, and Vayne. Teemo's Passive has already stated to be considered Invisibility, despite the Passive's name being the opposite type of stealth. Now, the main thing comes down to Teemo's Shrooms. No matter which way they go with his shrooms, they will need to be changed since if their stealth is labeled as Invisibility, then they have just been massively buffed and are now truly invisible for their full five minutes, giving Teemo's map presence almost NO counters. This would be a gigantic buff to Teemo since it removes one of his main weaknesses. On the other hand, if they are labeled as Camouflaged (for some reason), then they have just been massively nerfed since then nothing but careful traveling would be needed to counter Teemo. Either way, Teemo Shrooms are most likely getting changed decently this Preseason. Twitch's Q is likely to be labeled as Invisibility or reworked heavily to be able to become a move that can be labeled with Camouflage. The likely scenario is that he has invisibility and his Q is nerfed somehow. This could impact Twitch's balance in a major way so be ready for Twitch to be pick/ban if it goes wrong. Vayne's is slightly less huge, but still huge. Since she is without a doubt considered Invisible during her Q based on the definition, then it means dropping a Pink or using a Sweeper will no longer allow you to attack her during her RQ invisibility. This is a pretty major buff to Vayne and likely means she will be getting nerfs to some other part of her kit or the stealth duration of her RQ is going to be reduced (really short duration).

While I know there is more to discuss, like how this will impact warding, I wanted to focus on champions here. Thoughts? Primarily Teemo is being changed here, but the other two are also getting decent little balance bumps to their kits.