That's an unfair thing to say and a faulty conclusion, because both Toy Biz and McFarlane were entering unexplored territory when they started making super articulated figures.
You have to remember that McFarlane started introducing highly dynamic figures in the 90s and this was a "new" concept for toy makers, at least for articulated toys. Articulation and engineering at this point was extremely basic, at least to our current point of view, and that presculpted dynamic pose was a way to make their figures look exciting.
Most toy makers still didn't have the necessary engineering like we do today to make toys look extremely dynamic, so to get that dynamic look, using a presculpted pose was a way to do that. Almost every company was doing that, including Toy Biz.
However, Toy Biz started including a shit ton of joints to get those dynamic poses, but even then, they still hadn't figured out a way to make it that exciting or as good looking. Whereas McFarlane got those dynamic poses that by making highly specific joints to go with the presculpted form to make it dynamic AND playable.
So both Toy Biz and McFarlane's had the same goals, they just had different methods to attain it. I think they were pretty successful, at least for their era.
McFarlane wasn't making "statues" until later, when he gave into demand for toys to look even better. Sacrificing joints for more dynamic sculpts and better paint jobs.