We introduced the cap and increased the difficulty near the ending somewhat because we saw a lot of people complain the game became too easy. The common pattern among the character builds we received from those people was that they had several of their resistances over 100%. To be fair, we're not too big fans of caps either, but introducing it seemed the lesser of a few possible evils.
Right there, he pretty much states "well, we aren't crazy about changing this, but we got a lot of complaints and couldn't think of anything better to do". His statement is not at all what I'd expect if the design really wanted to rule out immunity to elements. And so many skills and talents only make sense if it is possible to permanently ignore an element (the Pyromancy PBAoE's, the mage affinity talents, etc.). And there are any number of ways they could have made the changes such that people already mid-game aren't getting the shaft. I'm sure your next bit of advice will be to crack out a saved game editor and re-spec my party rather than starting over yet again (which doesn't work as there only seem to be PC versions of the tools).
