I'm not sure about this one, because while on the one hand it's completely pointless fanservice for a shower scene, it's also fanservice because she has already had a shower scene. It's more like asking for the new Metal Gear Solid game to include a cardboard box maybe, or requesting that the next Mass Effect has a Shout Out to some pointless but well-loved character, like the 'humans are all racist' guy or the man trying to get his refund for an omni-tool.
So yeah, it's blatant fanservice, but it's two types of blatant fanservice.
Also, we're always whining at studios who don't try and make the fans happy, so when a studio goes out of its way to include one little thing that their fans have been asking for, why should we suddenly get all tetchy because they've caved to the pressure? The fans of this game want this, and the studio have given it. It's like Valve putting chainsaws in L4D2. Fans asked, studio gave, good on them.