Eternum is now using IPFS Cluster and should be greatly improved (I just pushed a bunch of bugfixes and significant improvements). Thanks for the tip!
Wow, that was really fast, congrats! I'd love to have Eternum support on ipfs-deploy, btw. Please let me know if you'd like to submit a PR and need help.
That'd be great! What sort of integration are you thinking? My JS is terrible but pinning stuff on Eternum is a simple HTTP call.