IANAL, but I suspect part of what they're trying to hide is that the old terms [0] specify that while they can change the terms at any time, you may opt to use the old terms as long as you don't update the software beyond the current year (2023.x).
That wording is changed in the new terms [1] to say "If the modified Terms are not acceptable to you, your only recourse is to cease using the Services." Just in case you were wondering how one-sided this new agreement is intended to be.
[0] Section 8, "Modifications": https://web.archive.org/web/20201111183311/https://github.co...