No we don't go around in circles.
There is a gigantic body of prior evidence about vaccines and their effect on transmission.
We have strong reason to believe (and some early data, now!) that the COVID mRNA vaccines will significantly block transmission. This comes from basic biological knowledge about the immune system and empirical data from vaccine studies.
The CDC is obligated to say that we don't know if transmission is going to be blocked as the trials did not read that out (yet).
We, however, can apply reasoning beyond a simply yes/no and understand there is a strong likelihood these vaccines will stop transmission.
The article suggests that Israel is seeing a fall in transmissions that coincides with the onset of population immunity from mass vaccination. That is data! It's by no means definitive but you should be excited to see stuff like that! Not dismissive -- we WANT these vaccines to work, no?
Vaccinations won't create a false sense of security as public health officials and governments are going to base re-opening standards on population levels of deaths/hospitalizations/cases. If the the vaccines don't work it will be obvious in testing and death data.
Odd that you think I am somehow financially compromised because I don't share your defeatism about vaccines. These vaccines have not been 'rushed' as much as you make it out to seem. Safety was evaluated in a gold-standard large phase 3 trial.
As others have said -- these vaccines confer immunity through roughly the same biological processes as the jabs you have taken in the past. You are perhaps overthinking this and seeking reasons to be pessimistic.