Correct, WSGI uses server side caching, like it says in our guide.
That means that Flask and Django apps can use the same old code for up to 2 hours. To make matters even worse different Apache processes can have different versions of your code cached so refreshing the page over and over may result in randomly picked versions of your site from the last 2 hours. This is why we recommend developing your Flask and Django apps on your development computer, and then uploading the production version to be hosted on our server.
Note that Python CGI doesn't have caching like that, just Flask and Django.
Remote access has been enabled to your only PotgreSQL database from your only PostgreSQL user.