Unless Apple does a complete refresh of their line at the same time, they're going to have a period of time when there is a mismatch between accessories and Macs.

And there's going to be existing accessories and Macs that won't be compatible with those that are currently sold, regardless if Apple refreshes the entire line simultaneously.

That's what adapters and new cables are for. Inconvenient, yes. What would be more reasonable in your eyes? How would you propose handling the transition?

That's precisely my point.

When Apple removed the headphone port from the iPhone it added lightning headphones and an adapter into the box. It also announced the AirPods.

But with these MBPs? Nothing. No new USB-C keyboard or mouse. No adapters included in the box. No USB-C iPhone.

I don't think anybody in its right mind would think the dongle situation is remotely good or that the vast majority of people would not need any dongle.

I also don't buy the idea that Apple is "advancing the industry" given the only thing it has done is removing USB-A ports.

IMO it would have been wiser to keep 1 or 2 "legacy" USB-A ports.

Why would they need to make USB-c accessories (they do though)? Other companies can and do make them. Apple should stick to making forward-thinking machines and software.

Because Apple also manufactures accessories like keyboards and mice.