I was pointing out that "Bros" in a company name is exactly an abbreviation for "brother". It is, in effect, a different word than "bro" used in slang.
The usage of [abbreviation for brother, as in company names] is very different than the slang "bro" used to describe undesirable people, but it's not very different than the slang "bro" used in the statement quoted in this tweet -- just literal brothers versus metaphorical brothers.
