BADI CRM_BP_UIU_DEFAULTS or Component Enhancement?

Hello Experts,

I just came across BADI CRM_BP_UIU_DEFAULTS implementation.

While creating the account, to populate the fields in BP_ADDRESS with default values, this BADI can be used to implement that functionality.

This was the suggestion by our functional consultant.

I was thinking, why not to enhance the component and set the default values in DO_PREPARE_OUTPUT method or using some other methods.

I'm sorry for asking so stupid question. But, it's been a question I was asked a few times. I thought it was becoz of performance issue. But, still I'm not sure.

Can someone please help me find out the reason why to go for BADI and not to enhance the component?

Thanks in advance.

-Ezhno.