care to elaborate? i've never heard that before or experienced any glitches myself while playing the original Gen I pokemon....
maybe his move set was weak, but he's truely a force to be reckoned with the first time around, which is probably what the developer's had in mind.
and as the 'New Champion' you should be able to train better/stronger pokemon and show up the 'old generation'...
Something that IS of interest to me is how Thunder will damage him, as rocks are not immune to electricity... didn't figure that one out for a while myself.