>Merriam Webster also lists "alright" as a variant of "all right,"
First Known Use of ALRIGHT: 1887
>"hone in" as a variant of "home in,"
They don't list it as a variant, they note that it is widely considered a mistake.
>"mischievious" as a variant of "mischievous,"
Acknowledged as a nonstandard though long-standing consequence of the uncommon mispronunciation.
>"publically" as a variant of "publicly,"
So does every other dictionary.
>"reoccur" as a variant of "recur,"
As far as I can tell it actually doesn't, even though both mean "to happen again" just with different nuances.
>"sherbert" as a variant of "sherbet"
Sorbet is just a crazy word with a dozen variants in multiple languages, mostly distinguished by whether there is dairy content. Hell, syrup is derived from the same origin. Sherbert is how it is usually pronounced in America though, and most dictionaries acknowledge this.
tl;dr - dictionaries follow how the language is used, and M-W is one of the best. Most of your examples are fully explained when merited.
~ Pansophist Kougen
"Tell me thy company, and I'll tell thee what thou art." - Miguel de Cervantes
