That's very bad. Anonymous and (mostly) decentralized contact tracing is definitively possible, and is exactly what the D3P-T and Apple/Google protocols are trying to achieve.
Developing a reasonably anonymous contact-tracing app is not that complex at all. I wrote a very simple (but working) app that also implements contact-tracing in a way similar to D3P-T or Apple/Google, and it only took me a few days: https://github.com/RaphaelJ/covid-tracer/blob/master/README....
Users will also never opt-in for such apps if they don't at least try to slightly protect privacy.
Developing a reasonably anonymous contact-tracing app is not that complex at all. I wrote a very simple (but working) app that also implements contact-tracing in a way similar to D3P-T or Apple/Google, and it only took me a few days: https://github.com/RaphaelJ/covid-tracer/blob/master/README....
Users will also never opt-in for such apps if they don't at least try to slightly protect privacy.