It’s not merely an argument about semantics though. The concept of only champions of various European leagues playing other champions is a pure and appealing one. The CL is only about money, the various broadcasters and advertisers drone on and on about how special it is but your average match going fan doesn’t share that view - they know it’s all about the $$$$$
We don’t “need” to win it at all. Using the word “complete” flags you up as someone who thinks football is a FIFA computer game to be completed. We’re one of the biggest clubs in the world with one of the biggest revenues, we sell out every week, the best manager of the last 25 years has spent his best years with us, the most sought after superstar footballers in the world want to play for us ….. winning some shitty corrupt overblown beanfest won’t make a scrap of difference to our status.