I wouldn't trust that japanese website when it comes to SED and ways of obtainment. I've already hurt myself levelling the cards with highest SED according to it... only to find out later that ni Nutaku's version they have much less SED.
Also, some artworks also might be different.
For example: compare the last two images of Akira Shiranui from
Nutaku's version (1) and from that website (2)
So use that database only as an example...
Also keep in mind that some cards might be of different Rarity Type here and ther, like Coliseum Princesses and some others... Which will also affect their max SED too...