I don't care what version one wants to use, that's up to the individual, but there's no law in against recommending why... to not use those later post-1881 versions.I've had Biblesoft, Olivetree, Logos, BibleWorks, Esword, Bible Analyzer, Sword Searcher and a host of others. I have made the comparisons.
I did watch the video and was already fully aware that the ESV uses a different body of Greek Texts for its translations.
..It sounds like you are telling them not to use post-1880 texts/translations.
We had no Bibles (they were forbidden) in our household growing up, so I am thankful to have God's written Word.