I'm not sure I agree 100%. I mean, in places there should be a bit of wink-wink-nudge-nudge, but I think you sometimes LOSE comedy when you play it too "cheekily" or "ironically." It's hard to take a show like "Where's Charley?" seriously, yes, but what's wrong with being sincere and looking for laughs within the dialogue? It's not like George Abbott was a slouch at funny lines.
DR Maya, when the Kennedy Center did its one-time-only attempt at an Encores! series, I edited WHERE'S CHARLEY for the Loesser office, and I went through all the materials in the Theatre Collection at the New York Public Library. I also watched the 1952 (?) movie, and I think the reviewer is wrong. It's my impression that the original show - from reviews, interviews, and photos - was both a knockabout farce and a valentine to a Victorian era when young ladies actually required chaperones to visit men in their digs, a time far removed from 1948, and even farther removed from 2004 now! The movie kept the original Spettigue, Charley and Amy, so a lot of what they do is probably a direct copy of the stage business. The knockabout between Charley and Spettigue is very broad and very silly. "Make A Miracle" is very wonderful, and "Better Get Out of Here" is very sweet, genteel, prim, and proper. This period of calling cards, visitation, chaperones, etc. needs to be observed; the characters have similar emotions to us but they're another period of social behavior, just as a good production of "The Importance of Being Earnest" needs all the social proprieties.
The published score for WHERE'S CHARLEY? is from around 1953, when Music Theatre International revised and finalized all the rental material. I don't believe the orchestration and choral parts they rent/publish are the originals: Gerry Dolan's original chorus material in the NYPL Music Collection are much more elaborate, and Jonathan Tunick, who saw the original for his birthday, remembers the reed players doubling clarinets and bassoon. This double does not exist in the current materials. What else can I tell you? I'm glad you got a good review!