If you don’t follow the Law of Demeter, changing the cell would also mean you have to change the data source. Decoupling the cell from the data source allows you to change and refactor one without affecting the other.
We even encourage new developers to work on some topic, no matter if they’re confident enough to do it. Even though being 20 and holding a presentation in front of 30–50 people, who on average are way more experienced than you, may sound scary, it’s an amazing confidence boost. It will prepare you for client meetings, help you better present yourself when needed and make you more expressive! There isn’t a single downside.