Gacha is gambling. Gambling has to be regulated. Gacha is not regulated.
Governments are lagging behind on putting these new variations of gambling under the appropiate sections of the law, but that does not make them any less insidious. Impulse control is not an argument against gambling needing to be regulated. I can only hope that gacha will experience the same fate as lootboxes.
That being said, Genshin is rather baity to begin with, so the yuri is subtexty at best. If yuri is the goal, there is no point to playing it.