That's incredibly confusing and seems like a mistranslation?

If full STR > full VIT then each piece of STR would therefore be stronger, DPS-wise, than each piece of VIT. That would mean that the current problem we have wherein STR is optimal once you reach a certain HP threshold remains. Also, at lower ilvls, I imagine that would still make melded stronger...

Unless they're just upping the damage output of bosses in general.

I dunno... seems dicey.