There is a lot of embarassing pro-Zionist material archived on IA, but scrubbed elsewhere from the Internet:
https://www.google.com/search?client=safari&rls=en&q=zionist...
So just to play devils advocate, since Zionism is being critically received all across the Internet - it is more likely that IA was attacked in order to censor those materials, and then a sockpuppet was created to shift the blame to pro-palestinian voices - which makes no sense, since pro-palestinian voices would want IA to stay up so that embarassing Zionist material was made more available - but such is the nature of agitprop campaigns during war time: through subterfuge and obfuscation, deny your enemy the materials it requires to continue its campaigns, and also deny them the ability to identify the cause of that material going missing, also - or, at the very least, obfuscate the actors responsible for denying it, using sockpuppetry ..