SODF OR DFN

I was working in this SOD-523 diode, onsemi part number RB751S40T1G .

Suddenly, I had a doubt with a value because the length of the pin is 0.30mm REF, I was thinking to use +/-0.05mm of tolerance but I said to my self: "how PCBFE resolve this question? and I've gone to the Parts area and bingo! it is ready to download.

After downloading I opened it and It was not similar to a SOD-523, it seems more a DFN component. 

Could we consider this kind of components a DFN and why? 

My first impression has been: the footprint is no correct but then... and why not? 

I attached the downloaded file as well.

My component was more "traditional"

I attached as well my component fpx 

Anyway I am not very happy with my footprint and as now we have a new feature where we can modify the corners of a footprint when the pad is rounded rectangle or chamfered pad. 

Using this feature I created the inner corners of the component squared  and outer corners rounded. the inner corners are under the component and perhaps are more close to s DFN...

What's your opinion?

Thanks for your comments, they are always really appreciated.

Regards,

David