Does WaitForCompletion work on deployment?

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I'm trying to figure out if these examples will work reliably when deploying to Azure.
The readme mentions using azd up, so I assume so.
However, these samples use WaitForCompletion which the docs say only work for local development.

azure-sql-db-aspire/hostedss - dbup/AspireApp1.AppHost/Program.cs

Line 29 in 26fe046

.WaitForCompletion(dbDeploy);

Are those docs wrong or will these examples have issues in production while the migrations are running?

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Do you know @yorek?