Yes, the mint's web designer lists the coin as a penny on these sets - I guess they are pandering to a subset of collectors that purchase these. The grannies call 'em pennies, after all. But I do find it strange. @SensibleSal66 - "Penny for your thoughts" originated in England.
They're acknowledging current usage. Only certain numismatists cling to the idea that "penny" refers solely to other countries' small coins. Americans have been referring to them as "pennies" for well over a hundred years. And, again, where's all the outrage over "nickels"?
@Lon Chaney Here is an old thread of mine from 2015 https://www.cointalk.com/threads/cent-vs-penny-what-is-the-correct-term.259971/
Nickels are relatively newcomers, and we can't call 'em half dimes. I guess 5-cent piece is correct? But at least they're made of a nickel alloy. Seems different to me.
Just for fun, I looked up the coinage act of 1857 authorizing the small cent - no mention of penny. http://memory.loc.gov/cgi-bin/ampage?collId=llsl&fileName=011/llsl011.db&recNum=184 And the coinage act of 1873 (that eliminated the half-dime) calls the nickel a 5 cent piece (and the cent a one cent piece). https://www.gold.org/sites/default/files/documents/1873feb12.pdf So I don't know.