It seems to de-anonymize a set of IaaS customers, sure; but that's not nearly the same thing as removing anonymity completely. I've only just scanned this but it seems at first glance to mean that a foreign company can't anonymously spin up an AWS instance, that's all. Am I reading this incorrectly?
There are so many things that can fall under the IaaS bracket. Think anything 'cloud'. Maybe that's not how they'll apply it, but legally they are free to do so. It's a huge reach.
Basically, it forces providers of a very wide variety of tech related services to collect identifying info on anyone who uses their services, and then store that info to either eventually be exposed in a breach, subpoenaed by the government, or sold to the highest bidder (might as well monetize it if you're forced to collect it )