The following 2017 youtube video says the lightning network hubs will charge money . . .
1. Is it true
It is possible. However, users of the Lightning Network will configure their software to search for the cheapest path available. As such, competition will keep those fees low.
If someone chooses to run a node with a high fee, then nobody will create a path using that node, and the node owner won't generate any revenue.
Although it might be debatable if Lightning Node Operators will keep fees very low. To provide the Lightning Network with liquidity, it needs a finite “commodity”, which also is your “capital”, Bitcoin. I don’t believe the more specialized/connected and more “professional” nodes will provide the lowest close-to-zero/almost-free fees.