It's not spelling, it's punctuation that changes the meaning of the sentence. We all make typos, we all make spelling mistakes, but we don't all consistently change the meaning of our sentences through apostrophe misuse.
Hint: Move your apostrophes from the acronyms and into your possessives.
You might want to do a quick search on the use of "'s" in acronyms to show it is plural. It is done for a very good reason - when you slap an "s" on the end of an acronym how can you tell if the "s" is part of the acronym or not? Capitalization may work but there are many examples in computer technology of mixed case acronyms.
This is a very common issue:
Use of plurals is another area of confusion to authors and editors. As with everything, Chicago/Turabian style takes precedence in this project. One area of specific confusion when it comes to computer terms is with acronyms. Most people mistakenly add an apostrophe and letter 's' to make an acronym plural. The major proponent of this incorrect method is "The New York Times," even though all publishing houses and computer magazines agree that it is wrong.
source
The point is the "'s" is used to avoid confusion though technically it is wrong usage (what was that you said about dictionaries lagging?). As noted, even The New York Time uses this method. I think you understand this but you just enjoy making personal attacks.
EPROMs is correct but somewhat ambiguous as compared to EPROM's.
The use of an apostrophe to show plural is not alway wrong. The following show correct usage of the apostrophe to show plural:
CVS's
M.B.A.'s
The usage rule from Stanford states "If the abbreviation uses periods or other internal punctuation to separate its letters, or if the use of s alone is likely to create confusion, use ’s to form both the plural and possessive."
Many argue that placing an "s" on the end of an acronym always creates confusion.
So, your reaction is very much overblown.
Try a google search on "EPROM's"