We have always been trying to find easier, cheaper, and less costly ways to do things. That does not exclude communication.
Intentionality is an investment in your relationships. Not only that, but intentionality is more specifically how much of yourself you are going to put into your relationships.

The three truths of intentionality:

The less time required, the less intentionality.
The more the communication cost, the greater the intentionality involved.
The easier a thing is for me to do, the less intentional it is going to be.

Putting intentionality into a relationship is a lot like putting hard work into a garden; when you put work into your garden you get really good produce in return (usually).

It is only a garden that is well maintained, where somebody has put a lot of effort into it, that you get the kind of produce that is sustainable.