Going over 100% resistance was quite silly and it is a good step forward that it was removed. And there is no worse thing then bringing out "free will" as an argument into discussion. The free will is provided in the form of modding tools, but a base game should be more balanced and far less prone to uber builds.
Though hard-capping at 80% might not be the best solution. A better approach would be to introduce diminishing returns on resistance buffs/advantages such as the more you pile on a certain resistance the less bonus you get. When calculated properly, this would effectively introduce a soft cap upon the resistances and do not allow you to pass over 100%.
And on the patchs' status...well there is nothing to worry about it. It is not likely they will let things remain as is and since the game is quite content-balance heavy, there is always a possibility a patch can break some other parts in unintended ways. It is the nature of programming. So some people should stop crying like they lost their sweetroll.