Yes, a challenge is fine. Well, I don't own a cat but a cat owns me. I wouldn't divide the cat-ownership experience into small pieces though. A purring cat in the evening is pleasant; being jumped on while asleep is not so good, but I'd never think of saying "I want the purr but not the jumping-on". On balance I've decided to keep the cat; that's all, and I take responsibility for the effect of that decision on myself and the cat. Electronics... I do a bit of that. If I hated soldering I don't think I would though.
In ED I like flying a spaceship. Any activity involving doing that is therefore OK, which covers 99% of the game. Since I've decided to do it for entertainment I wouldn't feel sensible calling it "grind". If I didn't like flying a spaceship I'd find a different game to play, or do more model railway, or watch TV and stroke the cat. I'd take responsibility for the effects on my life, and I'd stop posting in and reading this forum.
So part of the issue seems like oversimplification here. Enjoying the game isn't an all or nothing proposition, and while everyone here like to do
some of the things one can do in a space ship not everyone might enjoy
all of the things one might do in a space ship. For those who only need the novelty of space and nothing further to sustain that, sure, game's probably fine.
And I suppose that from that point of view you might wind up reasoning that if you don't like doing something in a spaceship means you don't like doing things in a space ship period. Or if you think doing something specific in a spaceship is tedious then you don't like doing things in a spaceship.
But for some of us it's a bit more nuanced than that. We can love trade while not being fond of combat so having relevant mods hidden behind combat engineers and their upgrades might be tedious. Or liking combat but hating the dock>jump>dock loop of trade making that seem tedious blocking some upgrades. Or maybe you're not fond of your spaceship game telling yu some options are locked behind getting out of your ship in a go kart. Whatever.
But hey, there's stuff you want to play with on the other end of that for your space ship in a game about space ships which makes you want to have it done even if you don't want to do it.
Or yea, I guess you could hang up your sticks the moment you find some part unpleasant.