The developers are the ones who have been doing the whining. Their predicament is real & worth addressing, but 15 minutes simply is not enough time. I know the 15 minutes was set by Google, not the Devs; so, this is not a disagreement with Devs - our beef is with Google.
Developers that are worried about hackers ought to build more secure apps, not punish the end user.
You know, retail stores simply budget a certain amount for "shrinkage." It doesn't mean they shouldn't and don't try to stop it, but the reality is that there will always be some theft. Software is similar. Piracy will never go away.
There are three types of people:
1. People who would never pirate under any circumstances. They stick to free apps and pay for any paid apps they want.
2. People who might pirate, but would pay if the price were reasonable and they had a good demo first or a return policy. These people probably won't even bother learning how and where to get pirated apps unless something pushes them to.
3. People who will always pirate.
You just can't worry about #3. It will always be there. You do want to put reasonable defenses in and go after what you can, but there will *always* be a #3. #1 is obviously good, though this may drive some of those people to stick with a free app that seems "good enough." #2 is what you want to worry about. This change will drive some of the people in #2 to the dark side. That is why it's a bad idea.