What's the logic here? If you're cross platform,
most people are most likely not going to be using your app on more than one platform, so there's little to be gained from a "consistent experience across platforms" angle. It's rare that the same person or team is doing both iOS and Android development, and the languages and layout methods are different anyway, so there's little to be gained on the development side in terms of reuse. Maybe it makes sense if you only have one "mobile PM" who handles both, but this seems shortsighted considering how quickly the platforms change and, especially on Android, how many devices and carrier customized builds you need to test on.
I suppose it makes sense from a branding perspective, but any designer worth their weight should be able to come up with a distinctive branded experience that doesn't revamp the entire, default, builtin experience on the device.