More attention is correlated with an improved conversion rate.
Attention won’t solve conversion problems but can help duct tape over them. Improving the conversion rates. But what it does mean is, if you can’t change other variables, optimizing to attention can help you maximize performance.
For example, adjusting the traffic mix, to those that are driving the most attention.
A good analogy, is a food demonstration at a supermarket. The more time people spend watching the demonstration, the more likely they are to convert. That food demonstration is unlikely to change. But how people get to the food demonstration might, someone could be outside handing out flyers, promoting the food demonstration and priming customers. So those that come along, do spend longer.