Like Jaxonville said, it was more of a funny fanservice. It's fanservice scenes also weren't as long as something like Kanokon.
Umisho: Ha ha! She's swimming around naked!
Kanokon: Ha ha! She's trying to rape him. (10 minutes later) Wow. She's still at it.
They're both good fanservice shows, but the style of fanservice is completely different.