AndrewBiz - please understand that we are located all around the United States with varying markets and sales.
Also understand that each and every appraiser has been trained by someone else - whether each of us is trained correctly is the question. Some appraisers have no idea how to perform a market analysis, hence, the 1004MC form - an attempt to have the appraiser provide more than just a few words like "stable market values" or "declines noted."
Each report should contain enough analysis and summary to allow the reader of the report to come to the same conclusion, however, each report is typically prepared for a lender whose use of the report, and understanding of the report, may be different than that of the casual reader.
Your concerns appear to raise red flags, however, there is only one way to deal with this. You need to discuss your issues with the lender. You can ask for another appraisal or review of the original.
If your lender refuses to comply, hire your own appraiser then discuss with your lender the results of that report. Remember, though, that an appraisal performed for a homeowner typically cannot be utilized in a lending transaction.
Good luck to you.