Sexy tickling without sex is like a burger menue without burger. Fries with ketchup without fries. The tickling itself is a great idea and well done here IIRC. It lacks the main event though where it can be used to enhace it.
Dude, that's the whole point of a fetish. If you have tickling fetish, you can just fap on a girl being tickled to tears and becoming totally crazy from that. It's pretty ironical, tickling is a whole universe in itself, and some ticklers could have the same reaction as yours on that point, like seeing no point to have a cute girl totally naked and just seeing upperbody action with ribs, armpits and bellybutton in a game/story/video. Without feet and the whole womanhood package, what the point ?