Hi, first of thank you for playing our game :D
As you point out, it would make way more sense to have multiple sheep where the player can have room for mistakes in, opposed to get perfectly 3 sheep across. It was indeed what we wanted to do even, we also planned to have a ranking based on how many sheep you get across in a fixed time. Sadly, it got reduced to "perfectly 3 sheep" due to bugs and time :( Hopefully next time we can stay true to our vision.
As for the Intro, yeah it was a VERY dirty last hour inclusion, xD The original plan was to have a story section before each level so Doremy can guide the player more slowly. However, the texts and its logic cause a massive ripple effects in the game stability, so we have to scrapped it. Luckily, we managed to salvage it into a small Intro. I have to say, I wasn't exactly satisfy with the intro as there is way too many texts present to the player. There are a lot of fundamental Visual Novel's text feature like instant text display, increase/decrease text/blend speed.
But in the end the game is less about the story and more about the gameplay, so these features are our low prior which inadvertently causing a more not so pleasant game experience for you ;_;