I’d guess it would reinforce the importance of getting vaccinated quickly, when vaccines are available for a disease, the same as for avoiding other side effects of contracting disease that we already know about.

But OTOH, the researchers seem to have added reverse transcriptase, which is something not normally active or present in most viruses (otherwise typically know as the central dogma of molecular biology). I don’t know enough to extrapolate how much that affects the applicability of their conclusions.