You are spouting nonsense sprinkled with vague half-truths. You have a distorted view of what one part of Google might have been like for the short time you were there.

There is no forced curve. One of your "Perfolympics" is actually optional. Perf is technically a permanent record, but promotion committees will rarely look back beyond one or two cycles (e.g. up to a year). Five years is nonsense.