What do you mean you are unable to make a call as the bearing is only 4-5 months old?
It is your job to make a call!!!! New bearing means nothing, the readings show an issue and you aren't doing your job if you ignore it. You sound like you have an issue with maintenance trusting your judgement, the instrument doesn't have an agenda, it shows you what it see's the data looks good so can be trusted. I was once told by someone far smarter than me, that with gE if you have a clear peak over 1 gE then you will at least see marking on a bearing raceway when examines, I see a peak at 1.5 gE in that spectra, so I think you are safe enough to have some noticeable damage if you open the bearing.
It may piss off some motor maker/rebuilder but so what, sometimes we break a few eggs to make an omelette.