The text from the image justifies the "maximum mining fee" displayed in the user's client, but it does not explain that even with an acceptable mining fee (e.g., 6.03 for me), the user might still be in the surprising position to pay more than he thought he would. (Because, for example, the decomposer treats a significant amount as dust.)
If you want to pay specific amounts to selected addresses, you can do so through Wasabi's RPC
I see. I'll try that the next time.