Yes. And from my anecdotal observation there has been a marked uptick in atrophy in precision (and supervision on the IP side), as a result of the expectation bias of not form landing from them (by stipulation) anymore.
Can't speak to local iterations of the 2.5 syllabi, but at PIT the new syllabus now includes a specific grade of wingman drop off, in order to force the issue of making the maneuver actionable. I.e. demonstrate proficiency in placing the flight in a position that allows the stricken wingman to transition to the single ship landing from a safe and reasonable position. On the wingman side, to demonstrate proficiency in evaluating a safe position to land and transition to a landing within CTS from the formation phase. Which is the whole point of teaching folks wing approaches.
It's not an academic maneuver from where I sit. As recent as 6 months ago we brought back a nose on birdstrike with composite DC left and right (partial) bus failure. Very complicated EP to troubleshoot, electrical out in the cockpit to include PFD displays, and NORDO on top of it. Bird ripped through the upper skin right in front of the windshield, where the buses sit in the forward avionics bay. They had to do a no flap they didn't immediately know they were going to end up having to make (which made for a sporty transition, the stricken aircraft almost overshot as a result of lead not accounting for this nuance). All DC-electrical out, nordo wing approach. All those visual signals we rattle on the semi-annual test but never use, well it became a need that day. Again, wasn't a pretty execution by the crew members' own admission, but highlighted the importance of keeping this specific skillset fresh, at least for the IP cadre.
I am of the opinion it would be a significant disservice to usaf aviators if we shied away from this training. Seems the AF agrees, as they didn't act to prohibit the training in the wake of the XL fatality they way they did for wing landings in the wake of the VN one.
Lastly, formation (section for the brown shoes) takeoffs are to me a logistical necessity on weather days for outright mission accomplishment in no-radar land, given the programmed daily sortie volumes at the sausage maker side of the USAF. Count me also as supportive of continuing that training item.