formit2db + CMP Generator & xpdo

A question regarding CMP Generator.

I created package in order to use Formit + formit2db but... it doesn't work.

I know that formit2db can generate package and it works fine. However I'm surprised by the 180 files created in core/component/package/mysql/ -- is it normal? --.

I'm really a newbie with xpdo and I would like just know why package generated with CMP Generator doesn't work with formit2db.

In fact, in my mind package models was a standardized/universal way to deal with xpdo...

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modx 2.3