Flying while stinking

Family removed from plane because they had body odor sues airline.

https://www.nbcnews.com/news/us-new...ged-body-odor-sues-american-airlines-n1127346
I have flown next to people who had questionable hygiene, not fun.
No, not fun - but was it causing people actual injury?
Being punished for causing discomfort seems a tad excessive