it isn't always that the work is bad, it's just the review process for getting in has always seemed to be easier for people with the right connections. Not necessarily in an overt conspiratorial way like the recent allegations either.
The reason people have latched on to the current set of allegations is there seems to be actual concrete proof of misconduct that can be acted on.
another anecdote, when first trying to raise awareness of the issue, when mentioning it to members of the community I never got the response "wow, how could this happen in computer architecture?" rather the response tended to be "wow, I can't believe it finally got bad enough that a student died"
Because these anecdotes are unsubstantiated, they can come across as sour grapes, which I think damages your good cause of exposing the serious misconduct for which there's actual evidence.
of course, nothing surprises me.