For starters these vehicles don't have the spring seats on the struts - the spring fits between the frame & the control arm - so Mr KYB man is obviously misinformed, next the weight of a gen 1, 5 dr is 2855 lbs, as compared to a gen 2, 5 door, 2.0 at 3020 (figures taken from the owner's manuals), so nowhere near 30% increase in weight, why should there be a 30% increase in damping?
As you say, OME uses the same part for both generations (I'm running the OME so I know they fit the gen2), so have at it.