If you've never read the h2g2 entry on tea, go an do it now. Don't read further until you have.
There are those who would suggest that making a cup of tea this way is frustration because it is too much work. It takes a long time to do all of that. In fact, in my estimation I think it would take about 10 minutes to make a good cup of tea, and then another 10 minutes to enjoy it.
This is a good thing. How many activities do we have left in the contemporary Anglosphere that require us to do something as slow-paced as this? It forces us to stop. It opens space for us to reflect. It opens space for us to talk with each other. A good cup of tea is never drunk alone.
Pardon this diversion into pop-philosophy, please, but I think that this is something inherently wise about the activity and practice of drinking tea. Certainly the Japanese philosophers think so, and so do I.