However, the Switch has endured joycon drift on too many systems to call this just a normal fault.
Has it? I don't see any evidence to back that up. Over 20 million Switches sold so far. Even if you say 0.1% of that have the issue. That's 20k. Is there even that many people with this issue? All the evidence I've seen on this is the vocal minority speaking very loudly about this.
I do feel that this issue needs to be fixed. Some people feel it's a manufacturing fault with a few of the units. Others feel it's a design flaw that needs dealing with. I feel it's the former but I haven't seen enough evidence to definitively say which it is.
The one fact I think we can both agree on is this issue needs to be fixed. Improve their manufacturing processes at the factories and/or look at this at a design level to better design new joycon sticks.
Whilst Nintendo have certainly taken positive action regarding the situation, the fact that people buying brand new Switch's today are reporting the same issues means we have to keep speaking up about the problem lest we get game companies thinking they can get away with these kinds of mistakes.
I agree with you, the vocal minority does have it's place. Issues like this can become much more widespread (usually due to complacency) if it's not nipped in the butt early on. People have teared town Switch Lites to find the exact same sticks as in the joycon. Meaning that whatever the issue here, it's not been fixed oat a production/design level. Nintendo is dealing positively with the few who experience the issue. However I do feel that this is a reactive approach which never works out in the long run. Better to act proactively and fix the issue at the source.
I am not at all belittling those who have this issue. To them it's important and they deserve to have action taken on the issue.
We just need to be realistic on how many people experience such issues. Just to put the issue into context. The issue should be fixed regardless of how many people experience it.
As an aside it will be interesting to see how many people sign up to be part of the class action lawsuit. We shall see then, how many people actually have the issue and how many have jumped on the badwagon.