It's not about being frozen out of bigger fights, it's about getting hired at all. (as an "opponent", which is what he was). Like you say, he was "reliably losing". I don't think many claim that the fight was fixed because Marciano was seen as a "freight train on track to becoming HW champion" at that time. He was a unknown 20-0 prospect, of which there were many similar, I'd guess - but one with a very influential manager who had started to take an interest in him, and booked to fight in MSG and almost certainly being groomed towards contendership and main events at MSG in the near future. Marciano's the "house fighter" against Lowry, and Lowry is expected to lose. Lowry, according to reports, had Marciano in serious trouble early on and backed off and seemed to carry Marciano for the remainder of the fight. That's it. I think people are overcomplicating the discussion.Journeymen fighters like Lowry throw fights like that all the time. They may not admit it but we've all seen enough professional boxing matches to know this kind of thing is "business as usual".