That means that any companies wanting to integrate dapps now can do so with just your run of the mill Javascript programmer. Quite a cost savings.
What makes a dapp superior to an app in the context of a single company?
Not sure on single companies vs. larger conglomerates.
In general, the answer is probably found by looking at what Dapps are:
https://github.com/DavidJohnstonCEO/DecentralizedApplications/blob/master/README.mdAnyone, please jump in here.
IAS