Relatives of victims killed in one of two Max 737 jetliner crashes blasted the proposed plea deal under which aircraft manufacturer Boeing would avoid trial for conspiring to mislead regulators about flaws in a crucial flight-control system. “Miscarriage of justice is a gross understatement in describing this,” Zipporah Kuria of England said in a statement Monday. “It is an atrocious abomination.” Kuria, whose father Joseph died in the 2019 crash of Ethiopian Airlines Flight 302 outside Addis Ababa, Ethiopia, also said that “God forbid, if this happens again,” she hoped the Justice Department …