Keep in mind that, in my country and some other European countries:
- people are allowed and even
advised to go walking or biking, alone or with people who live under the same roof, because sunlight and physical activity can help boost the immune system and also being out in nature reduces stress;
- there is (has been) a shortage of protective masks, so using them for yourself while the doctors and nurses need them so much harder would be really freaking selfish. (Everyone who still had masks was asked to donate them to the hospitals.)
As long as those people in the parks are not gathering in large groups or making direct contact (a distance of 1,5m is advised), they are doing exactly as the government asked them to do. That's not something they deserve to be ridiculed for, no matter how 'mental' you might find it.
(Unless you are talking about a country like Italy, which is in complete lockdown. There, people have been asked to stay home unless absolutely necessary.)
That doesn't prove anything. They could continue the one-shot for the movie and then go further beyond. Nobody said this one movie would cover the entire series.
So the one-shot isn't going to be part of the series? Huh...