The key is that he said "Steemit has long legs" meaning that it isn't going away anytime soon.
His predictive language looks into which cryptos will be around for awhile and the moves that they will make.
He says that MANY of them will disappear during the hyper-inflationary period coming up shortly, and people will lose lots of money on those ones.
But he says that Steem will still be around.

I have his report, and don't want to give too much away because you are supposed to pay for it ...
but it shows that Steemit will do okay,
not as good as several others that he talks about, but it is still in the picture.

It's funny, because there is another coin that he says have every reason to "croak" called Pepecash (it's based on a frog meme) that is going to do well despite every reason not to.

So, what he is saying in this video is that her personally doesn't like the idea of behind Steemit coin, and doesn't understand how it has value, so it's not one he would invest in. He is not saying that it will do horribly though.

Perhaps he has not read up a lot on the reasoning behind creating Steem and Steemit and how the bloggers time and creations are the value. Just because you don't understand why or how something works, doesn't mean that there isn't value.