Well they did also reduce the mind damage range falloff distance, effectively making the damage less consistent at mid range, and making it less effective at range ‘faster’, by a significant amount compared to the slight max damage range buff they got, which should be almost unnoticeable. The only thing that is of some value in terms of a buff is the reduced reload time, which again, is not too significant in terms of a upgrade. I wouldn’t worry in the slightest.
Now, the machine pistols was actually understandable since the revivr is so powerful in skilled hands, as well as loadouts on mercs that can take machine pistols where picked way more often than those with revolvers/pistols, as they are generally easier to use. Also, buffing the Simeon really helps the balance between Fletcher loadouts, so I have literally no complaints here.