As a non-user, I think such variety is a good thing.
Not using the same thing everyone uses forces developers to care about standards rather than to assume compatibility just because it is how the favorite implementation works. Same reason why it is a good thing that a popular browser that is not Chromium-based exists.
Not using the same thing everyone uses forces developers to care about standards rather than to assume compatibility just because it is how the favorite implementation works. Same reason why it is a good thing that a popular browser that is not Chromium-based exists.