>>718887085
Chaining spells together is incidental to RP, its just them making magic more fun to use in general.
FROM isn't giving a boost to players that aim to role play, they're tweaking the PVP experience and that just extends elsewhere.

The payoff for following a quest doesn't have to be great, to feel worth it.
Fia's quest in the base game is actually good, and you get a mid boss remembrance and some spells that you'll probably never use for it. But you want to follow along because there's actually something given back to the player for doing it.
Just getting a decent little trinket is immeasurably better than role playing into the gaping void.

The last two 'role plays' you described are vaguely themed murderhobos.
I just got off a 'spears only' play through where I only let myself use spears (messmer soldier's spear the GOAT). But I wouldn't call it rewarding RP.
It was just a novelty to give the game more life, but being spearman had nothing but a mild intrinsic payoff in the end for having done so.
That is only as rewarding as you are in love with that feeling of slight self satisfaction.