As long as it is opt-in telemetry, I don’t see any issue with it personally.
In general, telemetry is extremely useful to a developer. Especially for long established products. The reason is that the feedback you get from users is often misleading. The feedback you get is typically from a very small percentage of your user base and highly skewed by people who want certain changes.
Having telemetry data, provides real insight into how your tools are really used in the field.
From a privacy perspective, I don’t want to share that information but many people don’t mind. That is why having it be opt-in is a great compromise. It lets the people who are willing to share it, do so. The develop benefits and the people who prefer privacy are also protected.
Of course, that only applies if that is the type of data they are collecting here. In this case, they seem to be using google analytics and yandex. I am not sure why you would use those particular tools to collect usage data from a non web-based client.