A smaller promise
A small release is not a less ambitious product. It is a narrower promise that can be tested properly. Limiting the first version gives the team a chance to learn from real use instead of guessing about every possible requirement.
I try to define the smallest version that proves the idea, then keep the next improvement visible rather than hiding it in a vague backlog.
Feedback while context is fresh
Short cycles keep design and implementation close together. Questions are answered while the decisions are still fresh, which prevents a small uncertainty from becoming a large rewrite later.
This also makes feedback more specific. Instead of reviewing an entire system, people can respond to one complete slice of the experience.
Finish the edges
Shipping small only works when the slice is complete. A narrow feature with proper loading, error, responsive, and accessibility states is more useful than a broad feature that only works in the happy path.