I think that is a good point poppa. If you think about it, Finn’s change of heart, to fighting for someone to fighting for something, is reiterated quite a few times:

When Finn tells DJ he’s wrong
The “Rebel scum” line
The “where we belong” deleted scene
Finn’s motivational speech to the Resistance on Crait
Finn almost sacrificing himself for the Resistance

Especially with the “Where we belong” scene reinserted, the “rebel scum” moment is a bit redundant.

I’ve had this thought of keeping the fight but removing their final lines about “scum”. Instead, it would be interesting if one were to keep Phasma looking at Finn, but add in the sound of shaky breath from under her helmet, almost implying that she is afraid. Finn looks at her, and then she falls to her death. Something like that might make Phasma a little more sympathetic in her final moments, and remind Finn that the stormtroopers are victims too.

I think Finn has just disassociated himself from his past identity out of guilt and shame, and a reminder could be nice hint at his plot in IX if they go in that direction with him and a stormtrooper rebellion. The alternate Phasma death seemed to hint at that, and while it is not in a condition to be actually used, a change like this could potentially hint at that idea still.