These mitigations would do nothing against a lot of real relationship failures. Imagine that everything goes swimmingly for the first year.
OP talked about someone asking you on a date. The suggested strategy was about mitigating problems that might be encountered when going on a date.
An analogous strategy for a long-term relationship might be something like “establish boundaries, ensure that the relationship does not crowd out contact with your friends, regularly check in with friends/family, talk to trusted confidantes about problems in the relationship to get a third-party opinion”, etc.
“This solution to problem X doesn’t also solve problem Y” is not a strike against said solution.
P.S.: The anecdotes are useful, but “data” is one thing they definitely aren’t.
OP talked about someone asking you on a date. The suggested strategy was about mitigating problems that might be encountered when going on a date.
An analogous strategy for a long-term relationship might be something like “establish boundaries, ensure that the relationship does not crowd out contact with your friends, regularly check in with friends/family, talk to trusted confidantes about problems in the relationship to get a third-party opinion”, etc.
“This solution to problem X doesn’t also solve problem Y” is not a strike against said solution.
P.S.: The anecdotes are useful, but “data” is one thing they definitely aren’t.