They moved away from the Walker trigger design that caused the problems in 2007. The new design is solid, but they did have a recall on 2007-2014 guns because adhesive somehow made its way into a handful of triggers from that era. The adhesive in the trigger group caused some problems, but the design is safe.
But shooters have never liked the newer design claiming it wasn't very good. I've had lots of experience with the Walker Trigger and have even seen one fail and discharge without the trigger being pulled. I put a Timney in mine years ago. I have no experience at all with the triggers used since 2007.
At any rate going with a proven design should be good for them.