I didn't have time to read the full paper so my opinion might be hasty, but I feel that's a bit too pessimistic.
If we can suppress the disease now, next time we will have the advantage to be prepared. We will know much more about how it spreads, what the incubation period is and what the most appropriate strategies are for isolation and testing. Simply put: We'll have better procedures. And I believe that it means that less broad measures might be enough to contain the spread.
For example: We will know that if someone got infected we should isolate & test everyone who that people contacted in the last 14 days. And we will test them continously. We would also know that sharing information is important so we will do it and people will be able to report if they might have contacted that guy. People will also be more cooperative as doctors will have proper protective equipment and chance will be minimized to get infected during a testing process - which is not evident right now as few hospitals are prepared for that level of contagiousness.
Also we will have increased health care capacities and experiences on which treatment was the most effective… Plus people will also be more cautious as they experienced what can happen if a disease like this spreads without control. So I can imagine that during the next wave it will be a more or less controlled disease w/ a few times higher fatality rate than the flu.
See Hong Kong or Singapore for example: Those countries seem not to be defeated by this virus and their only advantage is better preparation for a similar disease and higher awareness within the society. Imagine what would happen if we would know this virus well and would have procedures for it specifically ...
