The current 'mature' design may have been somewhat recent but that's the general distillation process of software evolution. I think in general all successful

The current 'mature' design may have been somewhat recent but that's the general distillation process of software evolution. I think in general all successful software products of similar intent migrate towards a fairly common UI layout which works best for interacting with that type of data. Not too often we see paradigm shifts in software UI's for established tasks.