I know Spool well enough- worked with him a fair amount in the VMUs. Personal opinions aside he's a really smart guy, did a stint at MAWTS as an Instuctor back when UAS was still part of C3 and not TACAIR. He was also the VMU-1 CO. He writes a lot, and has an opinion on just about everything. His callsign is Spool for a reason.
I'd say that his perspective has value if you know where he, and it, are from. He's always been an outsider looking in when it comes to the pilot community. He's had an entire career hearing, "you guys did great work, and were instrumental in the effort, but you're just a robot guy, so fuck you, you're not a real warfighter."
As far as whether they know what they're talking about or not, I suppose we should ask who their intended audience is. I surmise that it isn't the TACAIR community anymore than it's the RPA/UAS community. It's easy to dismiss someone this way, but it doesn't make them go away (in this guys case, it's going to make him louder), nor convince others that they're wrong. Interesting that he's got a couple of guys inside of the VFA community sharing his ideas publicly with him.