This assumes that edsu will never betray you. Given the broad meaning of betray used, that seems unlikely. If edsu gets big it will have to pay for all that storage somehow. Like all things edsu will one day come to an end, and like most websites/companies/endeavors it will probably come to an end before I do.
Edsu seems to rely on federated services. Email, similarly, unfortunately fell to convenience - GMail, with Google selling your data. The parent brings up a good point, how do we know Edsu won't betray its users? Or that it won't become dominated by a centralized provider? I'd love to hear an answer. For me, our team decided to take a route that cannot be compromised - your identity belongs to you, fully decentralize…
Bitcoin is theoretically fully decentralized, but when I sold mine off it took 2 days to sync the chain - I get why people use Coinbase. I'd still be running my own email server right now if it weren't for spam.
My point is that I think there's inflection points - when weaknesses in design or implementation become apparent - where centralization can get a foothold, and I don't think it's inevitable which course things take at those points. HTTP hosting, for example, has some big players, but it's still very much a commodity.
I realize that this is a crowded field, with lots of contenders, like yours. I think it's an important enough problem that it warrants parallel attempts, so that at least one of them sticks. Edsu picks a very specific strategy, which is that it's a compromise - it's not like, say, IPFS in its level of decentralization. For an app platform, I think there's challenges enough at any level of decentralization, and Edsu tries to b-line it straight there by being very orthodox and old-skool in nearly every other way. I thought it was a good bet, but only time will tell.
Props for the password resets, BTW. The importance of that feature is underappreciated :)