Every one of the stories you link make it clear that the reports came from Ukranian sources.
Nowhere in these stories do the news outlets claim that the Ukranian reports were independently verified.
So I'm not sure what you're complaining about. These news outlets are reporting what Ukranian sources say, just as they report what Russian sources say.
In the first few sentences, they mention these things as facts. And maybe at the fifth or so, it's mentioned that "Ukrainian media reported". It's clear that they are sourcing it from Ukrainian sources, but they present them as facts too.
Nowhere in these stories do the news outlets claim that the Ukranian reports were independently verified.
So I'm not sure what you're complaining about. These news outlets are reporting what Ukranian sources say, just as they report what Russian sources say.