I get a chuckle out of the vertical exhaust pipe and I especially like the tarp strap securing it from rattling. I think I'd invest in a band clamp over the pipe where it interfaces with the lower pipe. The tarp strap looks 'tacky'....
Little bit of misinformation too... Using gear oil (which I always have) in the front axle does nothing for power transmission to the wheels (contrary to his comment). All the gear oil does is provide better shock cushioning for any shock load imparted to the gears in the FWA. It has an EP additive but so does Kubota fluid. I use it strictly for the shock load mitigation.
If I were him, I'd take a hard look at aftermarket tie rod ends. The OEM ends have no grease fittings, the aftermarket ones do and they are less expensive to boot.
I'd also replace all the boots which isn't a problem on my units as they sit much, much higher and I don't run over stuff, except uncut hay and high windrows when bailing.
One item I don't believe he realizes and that is, the tie rod ends are a separate part from the adjustment rod / radial joint that interfaces with the steering ram. That is a separate part and it's quite expensive to purchase. The issue with them is, if the boot gets torn, it allows dirt and grit to enter the radial joint and it will get sloppy and there is no turning back other than replacement. They aren't grease able, only the retained grease in the boot lubricates the joint, why it's important to keep the boots on that joint intact at all times.
Finally he discusses his bucket's shortcomings. With my units (but maybe not his, I don't know), Kubota offers different buckets. The one he has is a material, light duty bucket. I run excavation buckets on mine. They are substantially stronger (heavier gauge material) and have stiffening plates welded to the bottom and on the sides whereas the material buckets don't.
My buckets are stout enough that they handle my bucket hay spear and load 1000 pound plus bales without any flex whatsoever.