Hello Chris White,
Thanks for your question.
Yes, they are allowed. The error message you're seeing suggests that your subscription has reached its quota limit for the selected region and SKU.
Based on the thread below, it is to prevent excessive tutorial usage from overloading servers See: https://github.com/microsoft/vscode-azureappservice/issues/2447
I will recommend waiting a bit and then selecting a different region or SKU or upgrading to pay as you go.
You can mark it 'Accept Answer' and 'Upvote' if this helped you
Regards,
Abiola