Yuri and Lumi joined Phase-Connect months after Gen 2 was locked in, they didn't have anything to do with recruitment. To my knowledge Yuri wasn't really doing anything 'management' related at Cyberlive either, that was all Lumi and Vera after the previous manager bailed (though she was coincidentally friends with said manager). Yuri's streaming career has simply been constantly hampered by illness, bad timing, and a few bad choices. Almost anytime she starts inclining she gets sick and vanishes for days, or goes on a break killing all her momentum.
This is a bit weirder than the norm though. She's deleted her VoD channel on YouTube, deleted all details in her About sections on YouTube and Twitch, apparently left Lumi's discord and unbound her Twitch details from her account (but left YouTube linked) and has closed off nearly all forms of communication one might normally have with her. The fact Rie seems aware of what's going on but doesn't seem bothered by it, and Lia, Yuri's BFF, is still awake liking random stuff on Twitter might mean it's nothing major though, hopefully.