This would be a very strange change to accidentally make. Just bad patch notes I suppose. I for one think it was a lame solution to the problem of elemental resists, though probably still better than how it was before. For one, 80% is still easy to get and makes enemy mages a joke. But also, it is kind of cool that if you get enough resist in something, you can get healed by it. It just needs to be much harder to get there, and something you should have to focus on to achieve. I would return the cap to 200% but massively reduce the amount of resists you can find on gear (as well as the amount of resist from elemental shields). However, I'd like to see gear (chestpieces especially) that had high resists in one or two elements, but no other resists, instead of like 50 resist in everything. Essences and rubies also need to take a huge hit.
In short, it's good Larian knows there's a problem, but this bandaid isn't the best fix.