Was there no option to continue using MySQL, keep migrating more things off of Oracle, keep paying 50k for 10 years, then decline to renew after your 10 year co

Was there no option to continue using MySQL, keep migrating more things off of Oracle, keep paying 50k for 10 years, then decline to renew after your 10 year contract was up? I'd think you'd end up saving the man-hours of migrating back to Oracle and you'd be in a better position in 10 years to not have to renew the license. All new projects/projects that are being migrated are now managed by Department Y. Eventually Department X has no more projects. Department Y and Department X are staffed by the same people. Seems it'd be hard to actually enforce the "discounted price of 50k was only valid if we agreed to use Oracle in every new project in our department."