It would also explain why the show got a renewal for Season 7 well before Season 6 even got a premiere date.
The show would have plenty of time to wrap things up in the next two seasons, and S.H.I.E.L.D.’s original era in the MCU is likely ending in the not-too-distant future.
I do wonder if Clark Gregg’s praise of the renewal for two seasons of 13 episodes each is a sign that S.H.I.E.L.D. is done after Season 7.