Even a relatively light reading of the Annotated Specs for Eth2[1] and/or the Eth Org's Proof of Stake FAQs[2] suggests the designers (and independent implementer-teams who gave feedback to designers, who gave direction to the implementers... lather, rinse, repeat) understand it's important to consider the overall system "outside of the comfort zone".

[1] one such: https://github.com/ethereum/annotated-spec/blob/master/phase...

[2] https://eth.wiki/en/concepts/proof-of-stake-faqs