It's better to source up-to-date documents. The paper you cited is 10 months old and was the first version released.
If there were radical changes in Lightning Network design (that removed all those cons) then I need time to analyze the new design details.
Edit: I have skimmed over the new paper, all those risks are still there. Risks are always covered by fees. So, tell me how you plan to do nanopayments again, please.