The problem with this is that it starts with someone taking a walk every day. Someone sees this and thinks they can do they same, only they go via the park. Another person sees this and thinks “well if others are in the park... I can go running” and from there it all falls to pieces as people realize there is no real enforcement of the rules and when the government see this, we end up back at square one.
Excercise and recreation are definitely not part of the flexibilización yet in CABA. Too many people circulating needlessly or recklessly, infection rate increases, the longer we remain in a state of lockdown.