I doubt most people will bother to read the whole article, including checking out the cited papers and assessing the maths involved.
However, this is a single paper in a sea of evidence that stay at home measures did prevent deaths, though sadly it will probably become the life jacket for the lockdown sceptics amongst us.
I look forward to hearing them give their assessment of this paper
They do seem to selectively ignore datasets which don't match their theory.
Interesting to note they are all Brazilians too and are backing up the Brazilian political line (although they do declare they have no conflicting interests).
Remind me how well Brazil is doing.