That's exactly right. EI sickness benefits tend to be viewed as short-term benefits for temporary illnesses to give time to the workers to recover until they are able to get back to work, whereas there are other benefits and supports available for longer-term illnesses for workers who require more time before they are able to return to work or in cases where they are not able to return to work at all.
On October 19th, 2022. See this statement in context.