Need for Cardio - Coach Sommer 'and / or / vs' Katy Bowman

Wondering what everyone's opinions are on these two views of cardio. Coach Sommer was on Robb's podcast last week and Katy Bowman was on this week.

Please listen to these views of 'cardio' and let me know what you think.

 

This week's podcast with Katy Bowman. Listen from 30:56-39:15

 

http://robbwolf.com/2014/10/21/episode-242-katy-bowman/

 

Coach Sommer's view on the our 'need for cardio' from his F1 Webinar. Listen from 10:01-12:30

 

I am especially wanting Coach Sommer to comment on this. Would like to listen to his views on this intriguing topic.

 

 

Thanks

good question, but your signature is a little off-putting

Could someone summarize what the two views are?