A cleric conducts a group marriage with a Ceremony spell so that a party of four humanoids all become spouses with each other. Everyone gets a +2 AC bonus while within 30 feet of each other.
"You touch adult humanoids willing to be bonded together in marriage. For the next 7 days, each target gains a +2 bonus to AC while they are within 30 feet of each other. A creature can benefit from this rite again only if widowed." - Ceremony, XGE 151
Seven days pass. The cleric kills two party members. Every party member, now having at least one dead spouse, is now widowed. The cleric casts Revivify to bring back the two dead party members.
"You touch a creature that has died within the last minute. That creature returns to life with 1 hit point." - Revivify, PHB 272
The cleric casts Ceremony to group-marry the party again. Everyone gets the +2 AC bonus again. Everyone in the party can benefit from the Ceremony marriage spell again and again, indefinitely, without dying and returning with Revivify. Because nothing stipulates that one ceases to be a widow upon remarrying or a dead spouse being resurrected.
Is this technically within the 5e rules as written? Thank you!