Earlier quoted context omitted.
Not everyone wants all the information and with many business plans, knowing the full version might be confusing to people working on today's stuff. I advocate balancing full transparency (I certainly don't mean to hide any info!) with a culture that can create a time and place for conversations that might go beyond today's work.
I rarely find the "people will be confused by full transparency" line very convincing. To me it seems like there is some other, unstated reason to be less transparent - because confusion is easily remedied by prioritizing certain information while making the rest just accessible if someone wants to look.
It's the ultimate "let's hide this because we know people won't like it" phrase.