> If you don't commit yourself to the database structures you defined at the time of application creation, then it just reflects poor planning
No it reflects the reality that requirements and applications evolve over time. You sound like someone who's never supported an application for more than 5 minutes.
> You sound like someone who's never supported an application for more than 5 minutes.
If your application requirements change every 5 minutes, then you prove my point - you suck at architecting and should honestly just give your job away to someone more competent.