Disagree whole heartedly. The benefits of ortho is minor compared to the split, but it’s still there. And if you’re already willing to buy an expensive split mechanical keyboard, what’s the drawback?
That's what happened for me, at least.
This was also going from 60% to my first split/ortho.
Took me another couple of days to get used to chording and these days I use a 36 key split board.
So your mileage may vary, but it's definitely not going to take you months typically.