The idea of playing what you roll has not gone anywhere. Everyone just shoots for the "build" the internet recommends.
They watch a youtube and copycat it.
I end up with like six opponents with the exact same 2 star deck in the game.
And it's because you did a bad job balancing these units, and since you can't so easily reach for a 3-star card, you can't counter a successful build.
At this point if someone wants to ruin your play-from-the-hip set, all they have to do is figure out which champion you're trying to hit 3 star and gather that. Then you lose, because when you do eventually get it, you'll be too far behind their Internet Build.