The act of fornication is to burn with lust, to ejaculate the seminal matter from one's body through the orgasm. Fornication means to burn as a furnace and to lose the sacred semen, or to waste that seminal energy through desire. Therefore, it is impossible for one to "take no stance regarding sexuality and spilling the seed" and to simultaneously reject fornication at the same time, because spilling the seed and fornication are the same thing. One can only serve God (through chastity) or the devil (through fornication, the orgasm). Therefore, if this group of Freemasons do not know this, then they are either confused, ignorant, or lying.
Lastly, understand that there are many who proclaim to be spiritual, but know nothing of transmutation. This is the definition of the lukewarm devotees within any religion.
I know thy works, and tribulation, and poverty, [but thou art rich] (with theories born from desire) and I know the blasphemy of them which say they are Jews (initiates of Freemasonry), and are not, but are the synagogue of Satan (because they do not transmute their sexual energy and know nothing about it). -Revelations 2:9
I know thy works (in Freemasonry), that thou art neither cold (self-realized) nor hot (through sexual transmutation): I would thou wert cold (self-realized) or hot (through sexual transmutation).
So then because thou art lukewarm (professing spirituality while ignorant of the sexual mysteries), and neither cold (self-realized and abstaining from the sexual act, having already conquered sex) nor hot (currently working in sexual transmutation), I will spue thee out of my mouth (of Da'ath into the abyss). -Revelations 3;15-16
Also, please read and study the lecture I referenced above by Samael Aun Weor, since his instructions elaborate further on the qualifications of esoteric schools.