This is an interesting citation because although speaking of the Dashwood ladies specifically, since we know they are engaged to the Park often, we can draw the conclusion that there are a lot of parties at the Park and Lady Middleton must be involved in their arrangement to some extent but I am not sure what further conclusion you mean to apply. Are you saying that Lady Middleton is so busy with her children and arranging her husband’s entertainments that it prevents her from other serious employments or are you saying Lady Middleton only seems cold natured and insipid, lacking in talent and taste because she is swamped by her husband’s insatiable appetite for socializing on top of being a doting mother. ;D In Chapter 9, Sir John is amazed at finding the Dashwood ladies always employed as he does not see it at home; I can only assume that he is speaking of his wife and perhaps Mrs. Jennings; this only enhances the idea that LM does have the leisure to be doing nothing often and the reason she has no other pursuits than her children and her table is that she does not want any. :D