Incomplete .. yes. This has 3 pieces. There's the backlog of reports each group has that have not been investigated because of manpower limitations. There are reports which have been investigated and will never be published. (Several reasons for this.) There are reports which are investigated and a report is published but it is only part of the original, raw report.
It is necessary to understand that different groups / sites have different standards regarding what to publish, how much investigation to do, etc. This varies between Bigfoot Balleyhoo where even the witness is unnecessary, Linda Newton-Perry invents them as she invents their reports, to BFRO who always investigates every report that is published. Most fall in between somewhere. Every site has an owner somewhere at some level. The "flavor" of the site generally reflects that person's beliefs. They select investigators they trust which generally means people who share their philosophy so it creates a filtering of sorts whether conscious and intended or not.
Ultimately, behind the filtering, is often a desire to appear scientific and credible to Big Science. I believe you are among those who have expressed an opinion that certain things should not be examined because doing so undermines the community's credibility. There it is. That weird need to prove ourselves credible to our scoftics causes us to self-harm. By omitting the "para" content, which is fairly prevalent, from publication, it leads those not "in the know" (with access to the raw reports) to conclude the para is truly infrequent. That, in turn, leads many witnesses to omit that from their original report ... further feeding the vicious circle.
My suggestion to other investigators is to conduct the interviews very carefully .. "the facts ma'am, just the fact." When that is done, before ending, ask the witness if there is anything they want to add or ask that didn't go in their written report. It's amazing what people are happy to talk about but not put in writing. GOOD investigators are not just interrogators, they are witness advocates. The witnesses come forward not to help us understand, but to seek help with a life / perception -altering event. We should leave them better than we found them.
MIB