I'd hardly say I have enough skill and my tool is a $10 kit from amazon. It's one of the most basic things you can solder.
Next you are going to say that there shouldn't be any screws in a controller because not everyone has the tools or skills to use a screw driver oh and the ribbon cables shouldn't have a latch because you need some time of small stick to open them and not everyone has that.
That's actually harder to self repair than with screws.
As that would mean it'll use plastic clips that need to be pried open and/or glues that need to be heated and replaced.
Btw the skill required to use Solder properly is on a different level and reach than unscrewing things or flipping flex cable connector locks.
At least in my region. Heck, I need to got to electric tools shop to buy Soldering tools. While I can buy (or borrow) screwdrivers on a bunch of places.
Screwdrivers also doesn't need special handling care to properly screw and unscrew stuff.
Sure, there are a lot of proper screwing and unscrewing etiquette, like for example, you should unscrew first then screw in, to find the right alignment, then you screw it in. Especially with plastic holes.
But even if you didn't, it'll usually be fine.
On the other hand with soldering iron, even the handling of the soldering iron itself need to be known. Even simple stuff like "don't let the hot head touch anything when not being used" is not intuitively known, despite it obviously should be known as it is a hot thing.
Anyway, the point is that switch joycon doesn't need soldering, to replace the sticks. One less skill needed.
With enough skill and tools, anything can be easy and quick enough to fix yourself. Including Solder reflow, and even reballing.
Some xbox 360 service expert even able to reball in minutes.
And this made me remember that it is so hard to find people offering Solder reball service in my region... Even for stuff that already have reball stencil.
Oh and also made me remember ps portal. Where repairability design is also need to be considered.
Not all people have thermal pads or heat gun and know how to properly use them.