The Touch Bar is a great example of a feature that demoes well but isn’t actually useful in practice. It’s a characteristic of promotion driven development in big tech that companies foist flashy unusable software on users as part of department or senior leaders play to show their product team is innovative.
The Touch Bar primarily acted as the “fat finger bar” since I mostly hit it by accident. It could have been useful for entering emojis but that UX was too painful.