You're overestimating how popular tarik and timmy are. Even if we were to consider that both of them combined have like a million fans, that's still nothing compared to the 19+ million playerbase that Valorant accumulated over years. And it is guaranteed that only a small fraction of that 1 million people fanbase is actually going to switch games.
Not to mention, the game is ass. Miracles like Valorant don't happen every week, where players from different games decide to switch. You need a large infrastructure for that, something that Shroud and Tarik and whoever else, doesn't have 100%. They are nothing compared to Riot.
The game is going to be dead in a month, just like The Finals. It has a shit gimmick that is going to get boring soon. The core playerbase of Valorant, the edaters, the rank sweats, the skin degens, the esports fans, they will never switch. Only the casuals might switch, and they will be back to Valo in a month or so when queue times for that shitty game gets higher and higher. I guarantee you that, a hundred percent, a thousand percent. So stop freaking out.