The former Redskins owner Jack Kent Cooke tried really hard to block a football team from moving to Baltimore. And the Redskins has a very large, strong, loyal fanbase that really wasnt phased by Bmore getting a team.

Now the Wiz on the other hand, have a very weak fanbase because they have struggled for so many years. And its not that they have a ton of fans in Bmore but Bmore is a decent basketball supporting city and by default root/watch the wiz because its the closest team.

And I think Bmore getting a new arena would spook the Wiz owner who also owns the Capitals of the possibility of a hockey team relocating to Baltimore. That would be a problem because there is a decent/large Cap fanbase in Bmore.