If you had watched the 2min video, you would have seen the bananas being dumped in piles - a banana mountain. Here is an article on the same video: https://www.news.com.au/finance/business/retail/war-on-waste...

Other people and the original source mention food rotting because it cannot be picked before it spoils, which is probably a problem. But in the case of these bananas, they have been picked and made it all the way to a sorting facility, and could be sent to somewhere for consumption. These bananas may be worse than the ones that rot in the field, because they are responsible for additional energy and labour expenditure.