The cloud was the dumbest hype because it changed nothing. Network services were now named cloud services, that was it.

We also got:

• cyber: the realisation that the internet exists but 20 years too late
• big data: companies snorkeling your data for targeted advertising and government surveillance
• blockchain: safe ways to pay your dealer and investment scams
• VR: the weirdest sort of corporate meetings and some cool game experiments

IOT seems kinda ok in that regard. Connect your microcontrollers to the internet to allow some extra coordination.