User blog comment:JustDancerzTM/Just Dance 2017/@comment-25371771-20160523214144/@comment-2133744-20160524174528

It could cause confusion. Now, it's one thing to have similar titles with a very minor difference (e.g. Birthday and It's My Birthday or Rock n Roll (WTYTTM) and Rock n Roll), but if titles are the exact same, it can cause problems.