One factor worth considering from the study the article references, which it really should have acknowledged. Tactics such as minimization, are extremely effective in increasing the rate of true-confessions as well, which significantly outnumber the number of false-confessions.
https://www.researchgate.net/publication/7798075_Investigati...
"Results indicated that guilty persons were more likely to confess than innocent persons, and that the use of minimization and the offer of a deal increased the rate of both true and false confessions"
Condition, True confessions, False confessions
No tactic 46% 6%
Minimization 81% 18%