Isn’t it expected from a teacher to appreciate his students' efforts, specially when there is no scope to make a straig

Isn’t it expected from a teacher to appreciate his students' efforts, specially when there is no scope to make a straightforward conclusion? Kindness is a great quality of a teacher, but maybe some human being want to stay just a faculty member instead of being a teacher. I don’t want to meet such faculties again. They promote antinatalism. May Allah bless him.