Well this is interesting, a new oldmarine miniature.
Many people had assumed GW would never produce any more oldmarine sculpts after the Primaris stuff.
By 'many' you mean the FUD crowd, made much louder by 4chan trolls, that had been screeching nonsense for the past 4.5 years?
Because by then, I have no idea what GW can do to silence these children, they release dozens of squatmarine models in last two editions, these are all ignored/excused as don't mattering for some reason. They give gigantic, completely unneeded buffs to old line (that do nothing to silence whining and only piss off people building army theme that was invalidated without a warning), they stop developing primaris characters to start endless re-dos of squat characters (instead of letting them die with timeline progress, which would be logical thing to do if you really wanted to replace them) - really, at this point the only thing GW could do is firing new, competent sculptors and starting hiring interns who can't sculpt legs or belly again to produce more of hideous mini gorillas but I somehow doubt they would ever do that...