This is false.

Some people may not have given the matter consideration. When they don't they may accept the bad solution as normal, and "normal" often rightly or wrongly leads people to jump to the conclusion that the solution is proper. I've many times had to argue against something where the argument in favor was "we've always done it that way."

Pointing out that a solution is bad records challenges that can be met and satisfied in producing a new solution. But if no one notices, or those who do never say anything, then people will tend to assume it is normal and therefore proper.

Only if the people making the decision are comptent and already considered the issues.