You need a good balance in all saddles, but a good treeless isn't worse than a normal saddle.
I'm pointing out that it is 100% crucial to have fairly-good balance before riding in treeless saddle because they tend to slip a bit more than normal saddles if you are ever off balance. Either that or keep your girth on snug. There is not as much room for error like you can in a saddle.
Like a bareback pad. You may have good balance but they will most likely slip around anyway.