You'd be wrong in guessing this is my app, but thank you for the compliment! I know an agent who uses it also so I can speak on both sides. If you've ever had to rely on Zillow's 'find an agent' you'd understand the delight in finding something like this. Just because someone is trying to help you doesn't mean they have an ulterior motive! I know some agents who's lives have been literally been taken ransom by Zillow and I hope this app does something about it or at least levels the playing field. Zillow are quite frankly drunk with power, now getting into the iBuyer game trying to corner the market on both ends. They might end up in a Congressional anti-trust hearing the way they are going!
Finding an agent quickly and easily via the traditional method is fraught with issues especially if you don't currently live in the area you want to buy in. Usually involves kissing a lot of frogs to find your prince, in the process you have given out your cell number to many and signed up to a hundred newsletters at the same time. It's more this than your confidentiality interpretation.
I totally agree with your feelings about the value that platforms bring when its all about the agents that work for agencies with deep pockets, this doesn't always translate to the best service as that is a very relative scenario (mostly depends on your personality actually) and you usually end up missing out on having choice, and I think that is what is the best thing about this particular app, as it's actually free for agents. So finding the right agent is done on a more honest, level, value driven spectrum.