To be accurate, Arc System Works actually developed the port. So in the Famitsu scan, too, it is listed as a Arc System Works title.
This is a greeeeeat news, as ASW is probably has the best track record when it comes to programming home console ports of arcade fighting games. Either Examu has generated enough capital in the past 3 years to actually pay proper sum to ASW (and part ways with horrible programmers at Ecole), or they have some kind of friendly ties. Zazzarius on SRK did mention the fact that there was that April Fool's collaboration joke in the past.