Personally, this definitely fits two needs for me, and this isn't silly at all in my eyes. First, I use really big knobs on my sticks. My knobs are step knobs. 10 time around with 1.5 inch tape. 10 times around with 1 inch tape, and then 30 times around with 1/2 inch tape. Splitting the tape for that last part is a pain in the ass. Now, it's that much easier and quicker.
This will be especially helpful when I'm experimenting with stick length.
Second, I currently use blade tape, which doesn't cover the edges of the blade. What I normally do is split the tape and line the edges. And not having to split the tape when replacing the worn out tape will be a huge time and hassle saver.