It's good to see this happen. It'll improve the perception of Safari for developers.
It always was always treated pretty unfairly. It's easier to parrot 'Safari is the new IE' rather than consider cross compatibility when you're writing websites.
Sadly I don’t think it will change anything. It’s different from Chrome so it lacks the feature of the week and needs “special fixes” because it has a different rendering engine.
It seems to be doomed to persona-non-grata for a lot of developers. At least until the Chrome worship dies.
It always was always treated pretty unfairly. It's easier to parrot 'Safari is the new IE' rather than consider cross compatibility when you're writing websites.