If I needed to work on a laptop daily, I'd probably bring another keyboard along. I very much dislike the uncomfortable typing position on everything but the thinnest devices and even then I'd like a little bit of key travel. I also don't like the screen being at the bottom near me, it's just an ergonomic nightmare.
I was more talking about the layout, which in my case actually convinced me to go 60% instead of TKL. My desktop board with the TKP detached is already TKL and personally, I'm actually a little bit more productive with my laptop because I can use the navigation keys. I never learned to use them on the big boards and now they just feel too far away.
Yes the typing position itself is not ideal, but I find that high quality scissor chiclet keyboards can be quite comfortable to type on if you're not doing it all day and have a good seating position. My example would be the Dell XPS 12, but I guess MBPs are very similar in that regard. As I'm not spending the whole day typing at work, I would've been fine with using my laptop for the next few years. But after trying the Lioncast K20 with cherry browns I just want to upgrade so, so much.