>>23167054Nintendo is super conservative, which leads to them often making bad decisions.
It's possible that they don't want to risk producing too many which then go to waste. They won't make more until they're completely positive they're going to sell, except by that point the hype will have died down.
Alternatively, it's possible they're having issues with the production. It's not that they don't want to make more amiibos, but that they physically can't for some undisclosed reason. That feels like it might be the case.