Communicating hard targets to customer is always a mistake, because software is hard. For that matter, many other industries similarly try to avoid communicating hard targets, and for similar reasons.
Internally, though, Slack et al have targets and expect to deliver feature X by the end of sprint Y. They just don't tell you in case it slides by a sprint, and to avoid laying out a product roadmap for fast-moving competitors.
Internally, though, Slack et al have targets and expect to deliver feature X by the end of sprint Y. They just don't tell you in case it slides by a sprint, and to avoid laying out a product roadmap for fast-moving competitors.