Sad to see him retire, he always came across really well at E3 and during Nintendo Direct over the years. Felt like a big part of the change in direction Nintendo took to appeal to a wider audience, particularly in the West, after the poor performance of the Gamecube.
His appearances since the release of the Switch seem to have dwindled so this isn't too much of a surprise - his replacement has the perfect name for the job though!
This is the picture Nintendo shared when Doug Bowser was announced as Vice President