Comment by nunez

For now. Google just waged war on sideloading. I think the current state of it is that adb will throw a warning with a cancellation timer before the sideload initiates. It's only a matter of time before we get an "update about sideloading in Android."

Though you're right in that Android will always have the upper hand in browser freedom. I definitely miss running real Firefox (with real extensions) on my phone. If only Snapdragon could provide anything close to A-series CPU performance.