Honestly, I don’t even know that letting it die is self serving except at big companies which can suffer repeated failures.
Depending on scale, a couple large train wrecks may take the company out and leave you unemployed.
If the company is 'one dev ignoring a bad project heading to failure' away from bankruptcy, you should have accepted a job offer somewhere else last year.
If the company is 'one dev ignoring a bad project heading to failure' away from bankruptcy, you should have accepted a job offer somewhere else last year.