The finishers having bigger impact is a problem in the current play system. It's not better than breaking combos when not hitting both sides, it's just different.
Finishers having bigger impact will mean that people will avoid them at all in every single play in the current pp system since only the top score play matters and people will purposely not hit the finishers since it won't break the combo and will give them another way to secure, in the future a better score that wields more pp.
This backfires on pp players since score is not weighted, only if you want to farm top 50's and for championships.
(Assuming score v2 completely replaces score v1)
Suggestion: Let the play that wields more pp count instead of the one with most score (They already did this with different mods)
Is the HR supposed to be weaker in score v2? 'Cause that seems the case.
Please, do not discuss Star Rating and PP here.