I like the feel but the feel means nothing if it stops working after a year.

I've had this MacBook for 2 years now and the keyboard is still working. I have a year-old work machine too with the v2 keyboard and it's still working. Maybe I'm just more careful around my expensive electronics than most. Who knows?

How come the keyboard has become some infamous, then? Strange...

I would argue that, because it's Apple, the people experiencing issues are more vocal and because, realistically, this is the first generation of the new butterfly keyboard so there will be some growing pains. I believe Ars posted a hardware survey sent to a bunch of laptop owners and the majority of Apple users preferred the new keyboard. YMMV, obviously, but I think it's much easier for issues to become "infamous" now that more people are using them and they all have easier access to post their complaints in public. On top of that, blogs and tech "journalists" want to jump in on any problem they can.

Because we expect Keyboard to last. Even the crappy ones that doesn't feel good with typing should last 5+ years with less than 1% repair rate. The newest Apple keyboard had close to 3% repair rate, and we had expect it to be less than 0.1% from Apple. That is a 30+ times difference.