Signature designers, as with signature holes, are overrated and can be symptomatic of fundamental design weakness and not automatic statements of creative design or financial success.
Chest pains may be symptomatic of heart disease.
Similarly, long test cycles might be symptomatic of overall sub-optimization of your development process.
The in-doubt transactions may be symptomatic of other problems and should still be investigated.
Chest pains may be symptomatic of heart disease.