“In fact, a classic delay tactic used by either spouse is to block efforts at proceeding to a get by claiming to want “shalom bayis”.”
This can be genuine even if only one spouse desires it. And that spouse has halacha on their side, which is why Beis Din is compelled to honor that request. It is baseless to assume that most requests for Shalom Basis is merely a tactic or ingenuine.
“The concept of a halachic pre-nup is to avoid such charades.”
Rav Elyashiv, Rav Shternbuch and numerous poskim have ruled that the so-called halachic prenup promulgated by the RCA and other MO groups are prohibited as if they were signed it causes a future potential Get to be a Get Me’usa.