I've read the same advice on other sites but although Honda makes a great moto X bike i don't really like their enduro. I think it'll take too many upgrades to be at the level of the KTM or Husq, Beta. and I don't want to get stuck with a 4th choice bike the rest of the year.
I'm leaning towards the KTM since more people ride that than Husq and Beta because if I go KTM i'll go with 500 Day which should be more heavy duty than Husq.
I am not suggesting you go with a Honda. I was merely using that as an example as to the thought process of bike choice. There are many KTMs racing in Baja. And I understand many parts are interchangeable between the KTM and Husky.
As far as Baja goes...it is far more important to put a team together that knows Baja and how to race it than bike selection. That may sound odd, but Baja is not for beginners (not saying you are a beginner, I don't know you). Even if you are "just riding to finish" you have got to have some people with experience in your corner. I know that a few years ago a guy that had never been to Baja raced the 1000 in the ironman class and finished. That was an anomaly. I know guys that raced Baja for years and never even finished a race back in the day. With much more reliable bikes these days a DNF due to bike failure isn't as often as a human failure.
Case in point, one of my good friends with lots of Baja experience was on the winning Class 50 bike this year. He pre-ran his section numerous times the week of the race. Then during the race he hit a rock in the dust and crashed breaking his collar bone and several ribs. He tried to ride out, but couldn't. He was able to get ahold of his team and they were able to get to him and his teammate got on the bike and continued. My friend was hauled out and back to the states. Thankfully he will make a full recovery.
I am not trying to discourage you in any way. If you want it, go for it. I am just wanting to shed some light on where your focus needs to be. If you are "riding to finish" a stock bike can get you there, pretty much every brand, with a few upgrades.
Like the late Corky McMillin said "In Baja, if you are going to be dumb, you better be tough"