There's a balance to be struck. A low error, low missed tackle game can be quite dull. I remember the ARL in the mid 80s was like that with games barely registering more than a couple of tries. Coaches preached mistake free RL.
Some people have different standards to others so you'd need a common criteria to measure against to decide if standards were rising or falling. Good luck on getting everyone to agree on it.
Even the mighty NRL has one sided games. Ask the Dolphins after their recent 0-66 defeat.
I wish people would be a bit more positive about what we have. We took a complete newbie to Magic Weekend and she absolutely loved it and the game has a new fan. The product on the pitch being enhanced by the fun we had with the fans especially the York lot we were sat with.