No upsize wasn't added. How would you expect that to work? Would it center the image? Place it in the upper right corner? Would it apply to stretch, fit to box, proportion to box the same way? Are there cases where you might want to upsize? Would it require an additional checkbox in the UI to activate this option.
There were too many questions around this potential feature to throw it in at this point, so we decided to wait for more feedback and see how popular that request is and identify the expected functionality and result when it would be used.