If any developer thinks that in a few years, sandboxing won't be mandatory and fundamental on macOS, I don't know what to tell you. So running away from it now is prolonging the inevitable.
The Pro in Macbook Pro does not stand for "programmer". The device is not catering to the past. The world is not full of UNIX era programmers. Some future programmers are getting their first laptop during the coming holidays. If you think Esc then I is the future of programming tools, I don't know what to tell you.
Great article. However, good arguments have never convinced some people. I'm so tired of this hand-wringing over the amount of RAM in a computer. The entitlement of some people is ridiculous. Apple, unlike Microsoft, does not produce software and hardware products for software engineers. It's time for software engineers to accept that and move on. I have.