I mean ye, you're not wrong, it's most dramatically visible in the mining game where in my top 5 i'm getting x5 or x10 of my previous score every time because I've got a fairly good idea of the optimal order to get the upgrades in. And yeah for fishing as soon I unlock going deeper I'm pretty much gunning it for the very bottom.
With the apple game, the skill component would be just dodging everything to get further than you should, but that would still take a really long time, and frankly isn't feasible when the whole screen is filled with attacks. But no matter the skill you can't influence how fast you get through the game, you can't choose to fight the first 10 bosses at the same time to skip past the slow start once you've gotten stronger.