My prediction of how the audience might view this in hindsight is that TFA and TLJ will feel like an overextended prologue while TROS will be this mega movie, the one you skip to (RotS anyone?), backed into a corner and ultimately too bloated to gracefully end the ride smoothly, if even intact.
Sounds like it will fit right into the saga then!
Such are the perils of flying by the seat of your pants!