Risk leads to reward - or defeat. Otherwise it isn't risk. Question here is; whose defeat? The company that took the risk or someone else? There isn't enough chairs for everyone in the current market.
...so whilst I agree with your statement above, state aid to Norwegian would not achieve this goal. Proper regulation and governance would.
Personally I think the most sensible solution would be for Norwegian to make its own destiny. If required, the various States where Norwegian crew were paying their taxes, should pay salaries and recency training until such time the crews are able to find employment again. Hopefully with financially responsible, decent airlines...