Actually even as a Russian and the one who is currently in Russia, I won't be defending Yandex.
I won't be celebrating cilivian casualties — but I believe there were none in all three attacks.
Yes, the disruptions will most certainly affect civilians, I know there is a maker of glucometers that rely on infrastructura that was hosted in Yandex Cloud, I'm not diabetic myself, but from what I know, it was a popular brand, and I bet that for there users this is a big problem — but this isn't even remotely close to what Ukrainians have to deal with every day.
And Yandex itself? I know a lot of people from other countries use their services and like them, but let's not forget that domestically it's a big surveillance tool — it's our "big tech". FSB has realtime direct access to all the user's data: your cab rides, your online orders, of course all your email communication — no court order required even, they are legally obliged to share this data. I've been doing my best to avoid their services for about a decade now.
And they aren't just some "little man" standing alone against the state, they are a huge company with influence, with lobbying power, with access to the media. They haven't been fighting back when Internet censorship in Russia was gaining steam — they chose to comply, and now they are facing the consequences. The fact that they legally can't migrate their services to data centres in other countries is also the result of them not influencing policy when it was still possible. Now they'd probably be happy to make their services truly redundant — but they can't, all their infrastructure is in Russia and it's all in the reach of Ukrainian UAVs.
As for getting rid of "AI bots", if by bots we mean things pretending to be real humans sharing opinions, expressing grassroots support — I won't be holding your breath, it's ordinary people who don't have access to foreign LLMs, those responsible for disinformation campaigns rely on foreign models all the time: https://politics.slashdot.org/story/26/10/10/0537232/openai-disrupts-two-ai-enabled-false-front-influence-operations-that-included-seven-fake-journalists
This is just one of the many news about such cases, this one's about OpenAI's ChatGPT, there are similiar ones about Claude, you can look it up. Then there are Chines models — the ones spreading disinformation will keep access to them, and they will keep abusing it.
But yes, there is Alice AI, and it was rumoured, that it would soon be made obligatory to pre-install it on all phones sold in Russia, and that it's app should be given extensive permissions, e.g. to access data from banking apps, you can imagine what it was supposed to be used for!
Two of Yandex supercomputers used for training their LLM were damaged in the very first strike, and the third one in the most recent one. Heavily damaged or destroyed. Without them their capacity to train the model would be severely limited. Restoring this equipment under sanctions might take months and would cost a lot — circumventing sanctions when importing compute-oriented GPUs cost premium. So yes, there is still a certain merit in these attacks.
Yandex is certainly not the enterprise deserving anyone's sympathy, I've been making jokes about "Alice going dumb" online since the very first strike — it's not celebrating civilian's deaths, and in a way the outcome might be liberating even for Russians.