You seem to be trolling here, but there is a worthwhile underlying discussion point, so let's discuss it in a civil way if you want.
So what is your view of marathon specific training? I don't think Pantman interpreted your comment right, because your initial comment suggests that work done at half-marathon pace would be marathon specific. This workout was functionally at half marathon pace - at least close enough when you consider my most recent half marathon (1:11:04 in Houston) was at 5:25 pace and this workout was at about 5:21 pace, but done on the track instead of the roads.
It is certainly not a "specific phase" workout as some use that language, but it is designed specifically to address a major limiting factor in marathon performance. So I would distinguish LT workouts from vo2max workouts in that way. I would also suggest that lower volume LT workouts like typical 20 minute tempo run are not marathon specific because you would do those to prepare for other, shorter race distances, whereas I would not do 8 miles of LT pace workout for shorter distances.
So when you consider the pace of the workout and the total volume of the workout, it seems a lot more marathon focused than a 20 minute tempo run, 4 x 1 mile at 5k pace with 3:00 rest, or taking a dump.