With bluetooth you can not track the surfaces, so the ratio of false positives and false negatives will be high.
The best way to stop possible infections remains in individual measures anyone can take. For this reason, I think that the objective of this platform is to track people, not stop the virus.
The virus can remain in surfaces up to 3 days(https://www.immedicohospitalario.es/noticia/18729/new-corona...).
With bluetooth you can not track the surfaces, so the ratio of false positives and false negatives will be high.
The best way to stop possible infections remains in individual measures anyone can take. For this reason, I think that the objective of this platform is to track people, not stop the virus.