I agree that this 10-year prison term is way out of kilter compared to other, more serious, offences not related to the pandemic and also goes against the government's soft-as-shite handling of the pandemic throughout where they've allowed too many to get away with too much compared to other countries but I wouldn't get too hung up about it because I very much doubt anyone found guilty of it will be sent down for 10 years, plus if anyone does end up lying about their travel history in light of this news then they're beyond stupid and deserve no sympathy.
Personally, I'd much sooner they dished out 10 year prison terms to any high profile Covid deniers spreading lies and misinformation about this pandemic because when it comes to Covidiots those cunts are the most dangerous of the fucking lot IMO. And before sending them down, I'd make them do a voluntary shift on a Covid ward without PPE. Let's see how much squealing they do then about this virus being a hoax.