Not at all. On the (unofficial) WK Yotsuba weekly live reading, Yotsuba is played by Foxumon, the creator of a wonderful ongoing series of Yotsuba study videos (it’s what Kazzeon is referring to in the post above) and she is amazing! Really, if you want to hear Yotsuba come to life as a real character, tune in to the weekly live readings, you’ll love it. And not only Foxumon, everyone who takes part brings so much talent and enthusiasm, it’s amazing.
(I’ve missed the last couple as my Japanese studies underwent a total meltdown, but I miss it!)