I agree, but I also see no conclusive evidence to certify that Brutes (or even potable water storage containers) will be totally safe, all the time. They're certainly not designed or certified for use in marine aquaria. Clearly, Brutes appear to work just fine for many reef keepers. But, those folks might not notice the sorts of problems Steve did (reproductive failures.) But, in a complex, closed ecosystem, who knows how this might pan out over the life of your tank.
Again, the thought I keep coming back to is that the price of a few 40 or 55 gallon glass tanks, vs two Brutes, is a drop in the bucket of a tank build, and you know you're getting something pretty much as close as possible to 100% safe. I've used plastic containers for RO storage and saltwater mixing pretty much my entire time in the hobby, and sure - I can't point to a tank crash and blame it on the containers, but the lack of observed symptoms doesn't mean something is totally safe.
Time to go polish my tinfoil hat!