The Rebbe responds to an editorial suggestion, defending his deliberate use of a less common version referencing food purity in Egypt. He explains that uncommon variants often reflect deeper intent and clarity, not error, and that changing them risks distorting the message—especially in light of contemporary challenges to kashrus in Eretz Yisrael.
https://www.torahrecordings.com/rebbe/igroskodesh/015/009/5433