Of course it's not a "disaster", but it is a mistake to give Baerbock a platform to spread her hate. She's going to go back to Germany strengthened in their coalition government. She'll be seen as the more competent politician for dealing with China than the chancellor. Some in Germany will conclude that you can insult China as much as you like and China won't retaliate. So you can expect more Chinese investments in Germany to be blocked and future diplomatic visits won't include signing big deals, because apparently China hasn't demonstrated that it prefers friendly visits that focus on trade.
It's a small loss, but it will have an effect. The German coalition government is currently writing a China strategy document. As a result of this visit, expect it to be more hostile than it would have been otherwise. You can't charm people who hate you, you can only confirm their opinion that you'll smile even as they punch you in the face
This is not a disaster, nor is it a mistake.
China will not change its core diplomatic principles because of a certain country's stress response to China at a certain stage.
No matter what kind of China policy she participated in formulating after returning to Germany, China has already stood on the high ground of justice and morality. This kind of high ground is not of much value to the United States and its vassals, but it is a necessary credential for a China that intends to promote world peace and multi-polarization.
The potential and lasting influence of this long-standing diplomatic core principle has been continuously reflected in major regional events such as reconciliation in the Arab world.
China gave her a platform, but at the same time it gave china herself a platform. China does not need to show its strength in words. If the harsh remarks cannot make the countries on the sidelines silently stand in line after reassessing the situation, then it is not as effective as a demonstration of an Land-based mid-course anti-missile.
let us wait and see.