Gifts must certainly be given, but it doesn't mean they can have whatever they ask for! Everything they need for daily sustenance should be handled for them, and an additional ten taels of silver given to Mr. Shen and Mrs. Shen as pocket money. As for whether it is enough or not, that is their business!
The dominant power must be in their hands, her purpose is simply to sway public opinion!
"Sir, Madam, you can live here at ease. Although we have split our households, or you can say we severed our familial ties, since you are living in our home, you will not be denied daily needs. In addition to free food and lodging, we will give ten taels as pocket money for the three of you. If my sister wants something for her dowry, you can buy it with this silver. As for you Uncle, and your family, rest assured you will also be taken care of."