Emerging Sources isn’t actually “easy to get into”.
Our 20% of our new journals have been accepted in Emerging Sources. Whereas 80% of our total content is in the full ISI.
As someone who applies to Thomson Reuters regularly, I was actually surprised how tough the criteria was for emerging sources content.
You’re just making assumptions based on a very simplistic/binary view of the industry.
The journals you label “predatory” are probably in there because they have the potential to be high-impact, or Thomson Reuters see other potential in them.
That is, of course the entire point of Emerging Sources – to find journals with high potential, not the finished product