Easy to use, hard to master. Or: low skill floor, high skill ceiling. My output wouldn't be nearly as good without subagents and skills, and MCPs are somewhat required if you deploy tool using agents at scale.
It's like saying all you need is notepad to develop. It's not wrong, but.. you know.
It’s not hard to master. It’s not a skill to be learned —- it’s a tool that comes with a manual. You read the manual and now you can use the tool. Most people never will read the manual which is what gives the false impression that there’s something “to master” here. It’s like saying vím is harder to use than notepad. Not if you read the entire manual first.