You raise some valid questions...and some that I think of as well. My attempt to counter argue would be as follows (may or not resonate):
Longs have bought historically so much that they are "tapped out" at this point. (I know I have been reduced to "pseudo buying" by xfring shares at these low prices into Roth IRA...I can pay the piper at end of year in taxes).
NDA's in place keep insiders (including those in the know at foundries) from risking running afoul of insider trading rules (yes, some folks are actually honest).
Engineering folks in general may be less inclined to be motivated by trading in stock.
The amount of time required to accomplish what LWLG has done over many, many years keeps skeptics from realizing that it really is almost "soup time". This is complex stuff and takes patience, insight and smarts.