Okay, I think I've found the heart of the matter(if this over-buff was intentional)
Up until Update 15, the AXCZs seemed to be tuned for new/casual/average skill/unengineered pilots.
[...]
It would seem, if intentional, that FDev have "balanced" the AXCZs according to the G5 Murder-Boaters, leaving average players who were having fun completely cut out of the content.
Don't be mistaken : as of today, even (and mostly) a murder-boat is more helpless than ever against this swarm of small and fast targets. Your best bet is a faster-than-ever-before ship, finding the good compromise between HP, weight, agility and survival tools, damage being secondary. And, oh, you're not anymore supposed to deal with the perma-regen of a Medusa, just leave it alone.
If ever this mess was all intentional and works as intended, the only goal I can see is to force players to wing up : I'm sure that a wing of 2 or 3 can clear the instance without much harm, one cold-orbiting or 6sharding the interceptors while the other(s) care about the scouts the very second they pop in.
But TBH I don't believe it for a minute because it'd mean kicking the 70% ? 90% ? solo players straight out of the war. This would deserve at least vague mentioning in the release notes, like "The Thargoids noted that their lesser kin wasn't effective enough and took action".
Conversely, the way Sally Morgan-Moore (FD staff) puts it in the "Update 15 Recap" :
reports of an unexpected increase in Thargoid Scout aggression and others.
Please do accept our thanks for your patience as the team digest and carry out their investigations
makes me think maybe
some change was intended to let scouts be more than ball trap plates, but not to make them total war winners.
Other observations just don't look "natural" to me : scouts popping in with regen triggered, human NPCs instantly wiped out then scouts efficiently besiegeing the base (which they said wanted to turn down), and so on.
Either there is a bug somewhere, like non-functional conditions on events that are then triggered "always" and/or multiple times, or... whatever. Too often in every company low-level misunderstanding or inattention leads to disasters.
Maybe some busy head publicly brainstormed what could be done for scouts like "I dunno man, be creative, buff their damage, make them leave the base alone, can they target modules ? do they team up or work each on their own ? I dunno", the PMO quickly wrote all this on a Post-it and passed it as-is to the dev.
It's hard to believe that such a big update went public without any kind of "who plays AX here ? let's run it and see how it goes", but I can't imagine how else this is possible. Frameshift Live #27 with Mechan literally introducing the FD guy to AX was sadly memorable to me.
Unfortunately until FD learn what "player testing" and "rollback" mean, this will keep happening and we will have to wait past their "Oh really ?" phase.