"Dangerous" Cantilers?

Hit the CR key by mistake ... and now DSL quit ... delay in posting
.....

One of our esteemed experts previously suggested that a cantilever
equipped bike without bbl adjusters is dangerous.

"If there are no adjusting barrels provided, the bike is dangerous and
defective. Nobody should accept such incompetence."

I'm baffled by this. Inconvenient, maybe, but dangerous? Defective?


Comments appreciated.

Robin Hubert