I thought the author sounded like a curmudgeony luddite. Ofcourse anything "different" will feel wrong for a little while. You have some muscle memory that you need to get over. So if you really wanna write a review, suck it up and use it till your fingers get rewired. Then write your reviews complaining about keyboard design.

I don't think he even tried the keyboards he's talking about, let alone give himself some time to get used to them.

I don't go read Vi's man page and then complain how it's too hard and unusual.