The strip above addresses the pacing of the 3-panel gag. Many of the other strips for the week looked at different aspects of the structure - and most don't need additional commentary.
The last of the sequence references Ernie Bushmiller. Bushmiller was the original artist/writer for Nancy. Bushmiller pared down his strip to its bare essence, and his tenure is one that most comic strip artists admire (including Patrick McDonnell, apparently).
And for a week of strips that looked at the foundation of the 3-panel form, it made perfect sense.