The resistance gets alerted first which makes the spy reveal less surprising. But it’s no big deal, its probably better to just leave it in. I’ll consider changing the subtitles though, that’s a good idea!
Um, could you restructure the scene so that we see the FO spy send a message, then after the FO arrive and we go to the R droid and it starts to notify the Resistance, but gets cut off be an explosion (the ties bombing the castle). So it can go from Maz saying “there here” to the droid (you can change the sub to whatever and dub chatter for screaming) before an explosion effect fills the screen and to Rey arriving and then looking in horror as we cut to the outside being destroyed and collapsing. Or something.