When you write something, what it is that you are doing, to put it very (clearly excessively) plainly, is selecting words that convey some meaning in some way that pleases you, the writer. Choose your words. You can try to choose words to please others if you like, but there's not much reason to expect success from such a strategy. Choose your words. Find your audience.
This might be a useful way to discover words for some writers. It's unfortunate that it also supports and validates the meme of this sort of very simplistic, trivial, easily parroted, stick-in-head, catchphrase-based writing advice meme.
The only way to write some sentences correctly is to use the word "only". And sometimes that that can't be removed, without changing the meaning. Or that's just the way you like it and that's that. It's like how premature optimisation is the root of all evil so you should never consider performance before the beta. Like adverbs, and starting sentences with a conjunction, or the inscrutable semicolon literal emdash all of these writing advice memes are very, very flawed.
Proponents of such things might claim that "obviously" you're (only) meant to apply such an intensely absolute rule where appropriate. Take chillpills, grandparent. I just hope that it's quite invisible that I find this somewhat hilarious, but also quite miserable.