I for one am beyond glad that ore-field entrance has been axed. Even when you see it coming, it is no fun as a Soviet player to stand guard there only to be gunned down by the superior Tanya. I saw a gameplay video with KOTG and that exact scenario played out. Swirly rightfully anticipated the Tanya/Spy sneak because that's what Silverlight/PXD2000 (or literally any duo of Allied players who know to cheese that route) always do without fail, and it's a guaranteed success. Even in the narrow corridor that it plays out in, no Flamer or Grenadier is a good enough deterrent.
Yes, there is a rewarding thrill to pulling off a covert op. Cheesing that route was ridiculous, and this cheese happens without fail and there is absolutely no fun in standing guard against that. I can't wait to see how KOTG plays out now with this change.