Definitely a piece of it, but still potentially misleading. Without a definite type sample for the DNA comparison, bigfoots might well test out as human. Remember that the mtDNA tests focus on specific gene loci for making the determination, they don't check the whole strand. If the differences between human / sasquatch mtDNA fall at some locations other than what we currently test, we're not going to tell one from the other until the testing changes. I'd expect that if they dig deeper than just trying to do species identification and get down to the level of testing used for determining paternity, etc then differences should appear .. should come across as some unknown haplogroup. That's pretty close to what one of Sykes' samples said, some kind of rare eastern European DNA found in a very unexpected location. I think that's worth a 2nd look.
I got to examine 1-2 pieces of the huckleberry that was broken off .. already contaminated, so no issue regarding DNA. Anyway, what I saw looked to be right at the limit of what humans could break by hand w/o tools as sharply as they were broken which points to very considerable hand strength. I was told that some of the huckleberry branches were considerably thicker than those I was shown. I think that puts it out of the realm of bear behavior, clearly and cleanly, and beyond the strength of the very vast majority of human hands. I find that intriguing as well. I would like to do some experimenting this fall. The huckleberry near me is a different species with pretty different characteristics but down by my dad's house the huckleberry is the same as the OP has. Then, as a side note, that first trackway I found back in '74 lead into a huckleberry "jungle" very much like what was shown on video taken when Meldrum went to the "nests" site. Again, very intriguing.
There are definitely dots that connect. Some that should not, too. Caution is in order in drawing conclusions but there are conclusions and insights that can rightly be drawn, IMHO, from what the OP folks did, and did not, find.
MIB