A month for dna results? Maybe on TV, but certainly not in real life. If you have followed cases here at WS, you will have seen the wait is usually approximately 6 months. That was in fact the case for a living possible match for Anna Waters back in 07? It was a long 6 month wait to find out the possible match was NOT Anna.
MartiLee has followed up and answered the question on the long wait back on the last page. She indicated the initial test was insuffient for comparison and a second sample needed to be take, thus starting the process from the beginning and having another several month wait. We ALL know LE is backlogged and we simply have to wait. I highly doubt the family, and Matt Birkbeck would be indicating reasons why the test results are delayed if they were in fact not happening.
This comparison is NOT taking YEARS as you have suggested. Quite the opposite, go back and reread the thread please to get your timeline correct.