Sounds like a solid plan to me. I'm agnostic when it comes to my desktop/laptop choices. My iPhone is with me all the time so the 'ecosystem' stuff can be decoupled from my computer without any heartburn. I'm at the point where I consider my phone to be merely an appliance anyway - I don't spend much time thinking about it.
My computer(s) are much more personal devices and there's a bunch of nerdy impulses that I like to scratch with them. Thus the almost year-long indecisiveness with regard to how I'm gonna replace this 2015 MBP.