You’re saying Deere was more than Kubota? I’ve often heard the reverse, Kubota being even more expensive than Deere. I supposed they’ve gone back and forth over the years and models, both are priced well above most of the rest of the market.
Deere and Kubota both have a lot of costs built into their pricing, that the other brands don’t, at least to the same level. Maintaining a consistent chain of parts availability on models going back usually 40 years is hugely expensive, as is supporting the vast network dealerships each has. That’s all before you factor in more time in design analysis and iteration, for things such as the above, ensuring their loader arms or cylinder rods don’t snap in use.
I think all brands can have build problems, and they should be addressed, but design problems point more toward company ethos as a whole.