If it's anything it would be the moderators of r/Place. The admin's job is more of administration level (sitewide), and it's more of picking up where the mod privileges end.
Right, but theres a difference between a suspension/sidewide ban and a ban in a sub. One can be done by the admins while the other is done by the mods on a subreddit level.
Reddit is provided by the owners to people in Germany, say. You can't ship goods/services to Germany bearing swastikas, AIUI, under their law. If Reddit sell to Germany (eg Reddit Gold) then they likely broke the law. /IANAL
The only sub that returns a 421 ("Unavailable For Legal Reasons") here in Germany is r/watchpeopledie, as can be seen in Reddit's latest transparency report.
There are subs where swastikas are allowed.