A little unprofessional but understandable. As soon as I saw Pav do the toe drag I thought Smith was done. He wasn't. He made a ridiculous and spectacular save. If it was my job to do homer commentary for the Yotes I definitely would've been tempted to say something like that.
Definitely unprofessional. Would have been great if Bert had heard that and then after completely undressing Smith with his spinorama, looked up to the broadcast booth and say, "Now what were you saying, Tyson?"