It's a bit odd that this upgrade (or i guess it's a sidegrade?) to mark 2 power armour doesn't even have the same grid size, rendering it somewhat worthless.

If you unlocked it between modular and power armour it'd be fine (just needs a nerf to the stats), but as-is it doesn't really make sense to craft it over keeping regular mark 2 power armour.

Having it retain the same grid size but with differing damage bonuses would be better imo, or you can lose a grid size (making it 9x9 for example) in exchange for better damage resistance.

I didn't understand the point of this armor neither.

Yea, the lack of grid size seems rather strange.

I'd assume it was a bug, but if so I would have expected a response or fix by now... someone should make a mod to re-grow the grid size