I think the reasoning here is that you might lose ...

# announcements

[Vlad]

I think the reasoning here is that you might lose the intended behaviour in "short" constructors, as your constructor will always call a 4 args version with the defaults. See TextView for example and how the "xml" 2 arg constructor sets the style when invoked. You will not benefit from this behaviour at all as you will call a 4 arg version no matter what.