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I agree with you. DAG will make huge difference.
ITC already done testnet and its proven to already be faster than almost all other standard blockchain based networks, which is really good thing.

True for IoT you will need light and faster transactions. I hope it would be easy developing over it for a quicker kickstart.

I'm sure they are aware of that, from a tech standpoint they seem to have set themselves up with the tools they need to handle the task they set out to handle, i mean theirs probably going to be problems along the way but the tools are in place at least

I personally think its the only way a project like this could really work from a technical standpoint, the fact is they are talking about a LOT of devices, by utilizing a DAG they take those numbers and turn them into a strength instead of a concern