This is all well and good, except when you procrastinate over things you want to do. It also throws discipline into the wind in favor of just procrastinating.
It's true, some things you can put off, and nothing bad happens. Other things, you put off, you lose your job or your house. Ideally you can separate the two, but maybe not.
Sometimes you have to do things you don't want to do, or don't feel like doing. And that's life. Rarely do things get better by procrastinating about them, though more often they get worse.
I feel like you might be ignoring the possible benefits of "waiting for inspiration" on some things. Usually, when I'm procrastinating, I'm just waiting for a time when I would enjoy the work. Without that, I often don't enjoy it.
Oftentimes I'll get out of bed with an unbearable drive to accomplish a single task that I've been putting off. And when this happens, I usually feel that I am more creative, dedicated, and much faster working. When you put that together, if you are trying to maximize work speed and creativity (ignoring deadlines), this kind of procrastination is optimal.
But ignoring deadlines to maximize speed and creativity is basically a way of maximizing personal fulfillment in the work. It certainly isn't maximizing any external factors.
It's true, some things you can put off, and nothing bad happens. Other things, you put off, you lose your job or your house. Ideally you can separate the two, but maybe not.
Sometimes you have to do things you don't want to do, or don't feel like doing. And that's life. Rarely do things get better by procrastinating about them, though more often they get worse.