The main theme of the blog post is taken from Peter Attia's "Outlive" book which is a compilation of science backed ways to improve health and wellbeing long-term which includes resistance training. Peter is very science driven and worth checking out. No "bro-y" at all.

Maybe the muscly pictures puts some people off as 'Bro's.

And maybe the article was light on citations, But there is science.

Everyone, even grandmothers, should be doing some resistance training.

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10121111/

Maybe https://startingstrength.com/article/barbell_training_is_big... is more to your liking?