IDEs are often big, slow, costly, inconsistently featureful, subject to the vagaries of personal taste and fluctuating support, difficult or impossible to automate, and not always available (either not installed, not possible to install, or just expecting a graphical interface that is not local to the operator)

TUIs/CLI programs are (generally) small, composable, consistent, reliable, fast, well-supported, installed by default or easily obtained, predictable, have good keyboard shortcuts, and they work great remotely.