Speak for yourself :P The randomness and the no-win scenarios left me particularly enraged many a time.
Personally, I greatly dislike all three of the minigames mentioned. They're mostly based on manual dexterity and/or grueling perseverance and do not, to me, fit well with the rest of the game AT ALL (which is almost entirely about strategy and not about dexterity). I'm not alone in the assertion as Lulu's challenge is frequently cited as one of the most ridiculous quests in all of video game history ¬_¬
However, now that this is on PC it should be trivial to edit your save and just circumvent the 3 challenges that most people rage against (the aforementioned). I see nothing wrong with that, and since it's a single-player only game feel free to do whatever you want. Don't let three particular side quests ruin an otherwise excellent experience.