Trust the lawyers to make out like bandits in just about any situation. This reminds me of the various UK "public enquiries" e.g. into Northern Ireland which last a decade and cost literally millions of pounds. Nice work if you can get it.
The analysis in the article is completely retarded--it takes the hourly rate of private firms and uses that to come up with a $2.5 million number. But the government doesn't pay outside law firms to do an investigation like this. They have lawyers on staff, and those lawyers make civil service wages, not private firm wages. 6,000 hours is basically three people working full-time for a year, likely for $80-$120k. Not exactly "making out like bandits."