Well it's a good thing you don't dictate policy.
It's not about ability anyhow. This new system is much faster, and in theory much cleaner, than a traditional oil change. Thus your average suburbanite schlub is more likely to do it, as it requires the least amount of time and effort possible. This then results in more oil changes being done, improving the lifespan of the machine- improving Deere's image- and also allowing them to cash in on a proprietary system.
I owned a D160 for 7 years, and it was an excellent lawn tractor. I also understood it's limitations. It's a great machine for it's intended purpose. Is it a 30 year machine? No, but neither is any other new machine in it's price point. However with proper maintenance they are capable of being 15 year machines.
I like servicing my machines, but I'm strange like that. The average person doesn't. They view preventative maintenance as a PITA. This will either improve the overall long-term reliability of the 100 series, or backfire and tank it.