Nope. It's just getting more inconsistent. That's all.
You're cherrypicking a few examples and even they aren't very strong points... Pickett didn't win a UD. One judge gave it to Easton. That's just more inconsistency for you (like the Uriah/Kelvin SD)... Some splits are so bad that it's mindboggling the degree of profound incompetency or else the fix is in: Mills/Chipper & Pierce/Rocha (a judge had the audacity to say he didn't know which fighter was which afterwards, like he can't tell red & blue gloves apart).
Even when the guy on bottom wins, it's also an inconsistent split decision as the judges have different scoring criteria: Hendricks/Koscheck.
Condit vs Hendricks? Guida vs Hioki? There are plenty more counter examples. Bottom guys are still losing.
The sytem isn't changing. The system is just broken.