Calling it a shortcut is kinda off. Skipping primer works fine if your walls are already in good shape. The real problem is people not cleaning or sanding first. I've done it in my last place with no issues, paint stayed put for years. It's about the prep work, not just the primer step.

You should definitely reach out to Matthew Fornaro, P.A. They are based in South Florida and have extensive experience helping small businesses and agencies solidify their contracts.