I think there are two key things here:

1. It's a new product, so sales/revenue/profit figures should effectively be relatively unchanged.

2. It's a new product that they announced with a bit of a fanfare, and has attracted a fair amount of attention, so there's some reputational damage from not delivering on the expectations they set. The damage may be nothing more than a short-term dip of share-price if they soon deliver on their promise, but the damage may be a little bit deeper and more extended if they don't deliver soon. It's still a niche product though, so I wouldn't expect any significant shift in share price.

For the issue around AirPods alone, I would expect a dip: perhaps an extremely slight short-term dip, but potentially a longer-term dip if it went uncorrected. That said, Apple have another announcement scheduled tomorrow, so the impact of AirPods on the share-price could quickly be completely immaterial.

Sure: Mainly it means that Apple is struggling with their supply chain, which for a hardware manufacturer isn't great. But since this is a brand new product it doesn't impact current revenues, but it does impact outlook.