What is the message of the allegory in Document D?
Document D:
THE roof of a certain mansion house was observed to be in a very bad condition, and quite insufficient for the purpose of protection from the inclemencies of the weather. This was a matter of surprise and speculation, as it was well known the roof was not more than 12 years old, and therefore, its defects could not be ascribed to a natural decay by time. Altho’ there were many different opinions as to the cause of this deficiency, yet all agreed that the family could not sleep in comfort or safety under it. It was at last determined to appoint some skillful architects to survey and examine the defective roof, to make report of its condition, and to point out such alterations and repairs as might be found necessary.
Having made observations, these judicious architects gave it as their opinion that it would be altogether vain and fruitless to attempt any alterations or amendments [repairs] in a roof so defective, and therefore proposed to have it entirely removed, and that a new roof of a better construction should be erected over the mansion house. And they also prepared and offered a drawing or plan of a new roof, such as they thought most excellent for security, duration, and ornament. In forming this plan, they consulted the most celebrated authors in ancient and modern architecture, and brought into their plan the most approved parts according to their judgments, selected from the models before them; and finally endeavored to proportion the whole to the size of the building and strength of the walls. This proposal of a new roof, it may well be supposed, became the principal subject of conversation in the family, and the opinions upon it were various according to the judgment, interest, or ignorance of the disputants.