I can't think of a single friendship that didn't start with small talk. I never expect a leap into deep philosophical quandaries with a stranger. Willingness to chitchat about mundane things creates a foundation of trust and familiarity that has led to many deep and meaningful relationships over the years.
I agree with you, and never suggested that it is all that is sufficient. It is a foundation from which deeper friendships and community will occur. Knowing someone starts with meeting someone