Apparently other developers have ported to Switch within a week. This includes Shoved Knight -- shouldn't Playtonic/Team 17 be getting advice from their idols??? -- and Snake Pass (which looks strikingly like Yooka Laylee in art style).
https://mynintendonews.com/2017/02/09/v ... 4-version/ Titled "Video: Snake Pass Developer States That The Game Took Only One Week To Port To Nintendo Switch, Shows How It Fairs Next To PS4 Version"
http://nintendospace.com/yacht-club-gam ... ight-port/ Titled "Yacht Club Games Says Nintendo Switch Is Easy to Develop for. They Had Shovel Knight Running Within a Week!"
I mean, I see no reason at all that Yooka Laylee should not be a Day 1 release on Switch. Hell, it should be a Day negative 1 for screwing us out of a Toybox.