Nothing in your link seems to imply this is the same issue or any manner in which the problem with the paint could have been prevented.
Not to mention, the article itself backs up the point that the NFL took appropriate action:
One player, the kicker, was injured. That means out of roughly 180 players that 1 was injured "due to the field". The NFL has a NFLPA/NFL team that investigates fields for playability. That committee certified the field that replaced the previous one that was reported to have caused the injury. Up until the point that paint was applied and caused a problem by a 3rd party contractor, there were no reported problems with the current field by either the NFL or NFLPA.
I still haven't seen the point the NFL screwed up....just a lot of "They should have done SOMETHING" which the NFL did. Sounds a lot like "Won't someone think of the children?!"
If I hire someone to paint my house who a history of successfully painting houses and he botches the job, that's not my fault. I hired an appropriate expert to paint my house. If information comes out that the HOF went and picked up some untrained meth heads off the street to replace the existing crew and the NFL didn't have it stipulated in their agreements that they had to use the professionals then, yeah, the NFL screwed up. I have seen nothing that indicates that is the case.