It's impressive, but also unusual, which makes sense: most language-specific courses tend to be geared towards beginners / people who are relatively new to programming in general. Some language developers are great teachers, so they make excellent instructors for an introductory course. But I wouldn't say this quality is universal, much like how many respected CS professors/researchers aren't so great at teaching.
Not commenting on Odersky in particular, since I'm not sufficiently familiar with him, besides the white Scala book. I will say though that course description claiming Scala "provides the core infrastructure" for my employer is a small overstatement. We definitely use it for some important services, and continue to use it for new projects, but it isn't accurate to imply it's the dominant language in our codebase.
Not commenting on Odersky in particular, since I'm not sufficiently familiar with him, besides the white Scala book. I will say though that course description claiming Scala "provides the core infrastructure" for my employer is a small overstatement. We definitely use it for some important services, and continue to use it for new projects, but it isn't accurate to imply it's the dominant language in our codebase.