A minion at RP remarks:

The Idolm@ster gives you their name in big kanji right off the bat. Although it does seem to make sense as a way for the audience to “engage” with the characters, there’s just too many girls in this show for me to remember each and every one of their Japanese names. How can they expect me to remember their names when I just got to know what they look like!

As anything in anime, this approach is not new. Pani Poni Dash did the same introductions. The names were impossible to remember back then, and they are now. It's not the name card as an introduction that is a problem -- Mitsudomoe had nicely done ones -- it is the number of them. When in IM@S 01 these cards are justified as being a part of the mockumentary, it only means the film itself is poorly directed. So, even though I knew all their names beforehand, I do not approve.

Also, the creators chose ugliest colors, and the least contrast colors for the names, making them hard to read. I see no artistic intent in this, only lack of competence on the part of A-1.