I still remember when people also called Kubota an off brand, that wouldn't last long, etc some time ago... All those depreciative comments that we now hear towards all the brands other than Kubota and JD. Maybe our Kubota fanboy forgot about that?
Since you're going that route, don't stick on searching for issues on others brands, try search for some Kubota issues too. You may get surprised. Also, don't forget that recall on some models where they didn't tight a single bolt well enough pretty much in the middle of the HST, that requires the splitting of the tractor to fix. Or that they don't even include a simple fuel filter neck strainer anymore on their overprice tractors?
Any brands can get and will get issues, it's just part of the game. Maybe 10 years ago, I would agree with you that Kubota was probably the best, but nowadays? Definitely not. Lots of good competitors around, at a much realistic prices that are proving to be solid machines.