Personally I find the notion that GitHub is somehow magically superior to the rest of the entire internet a bit silly.
I’ve worked on distributed systems my entire career, I have yet to find a single one that is completely immune to a datacenter outage, there is always some single point of failure not considered- often it is even known, everyone has the “special” datacenter.
Its also true that “market forces” push for better cost optimisation, which can, in cases, lead to being not sufficiently sized to cope with an outage of a whole DC- made worse are people who think cloud will solve this; because every customer will be doing the same thing as you during a zonal outage.
Regardless of that; you are basically suggesting that github, as a centralised system, is better equipped to deal with the distribution of packages than a literal distribution of package repositories?
That’s odd to me, maybe not “laughable”, but certainly odd.