Some of the new platforms do look cool, but I can assure you they aren't just there for aesthetic purposes. Having them around gives mission designers more flexibility to create compelling missions, and they all have appropriate specifications, weapons, and sensors and contribute meaningfully to the threat environment.
Hell, just look at the Talwar. No new model there, just a reused ugly stock Krivak. Lots of new capabilities though... new main SAM, point defense SAMs, VLS antiship missiles (loadout varies by hull #), new air search radar, slightly improved RCS.
EDIT: oh, wait, the Talwar isn't in 3.10. I've said too much!
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