That's par for the finance world. They will sell you shit with a smile as long as it pays commission even though they would never touch it (or are even short it).
For anyone whose knowledge of this starts and ends with The Big Short, CDOs are not inherently bad. They're just a structure for divvying up assets based on risk. The problem up to 2008 was that the risks were downplayed/hidden by the banks and the credit rating agencies.
We do the equivalent of CDO to our networks at Google. (Ie tcp can't deal with packet loss, so needs the best tranche; especially if user facing. Some long running copy operations with fountain codes only care about total throughput, not lost packages, so get the `equity' tranches.)
No - when they sell you a security, the assumption is they were long until then (holding it) and then either disposed of their entire long position or disposed part of it (in which case they continue holding it long.)
Seems to me that depends on the actual quality of the report. If the report is substantively useful, and not hopelessly biased, then I don't see anything too sketchy about this.