Positivity here : this week I managed to fully upgrade from scratch a FGS with a weird but fun build based on canons, rails and missiles, and also topped most of my fleet's FSDs and thursters, and also my traders' shields, and also prepare a bunch of spare shield boosters, and also finalize my Corvette PvE set up, and upgraded to G5 some weapons on other ships... I made a great use of collector limpets during fights, remote engineering, pinned blueprints, material traders...
Thanks FD for this initiative ! Finally, engineering is quite pleasant, I get to pilot my ships to the engineer bases to apply experimental effects, and therefore to plan in before my trip (lesson learnt from moving a FGS with a jump range of 17Ly across the bubble without fuel scoop... not going to do this again soon !)
IMO, these events should occur a few times a year... but not too often or people would wait for those and be frustrated. It's more a cherry on top than an expected and due feature.