Of course. Your idea is THE idea. You CANNOT get mass adoption without a minimal amount of hops. You won’t get the hordes of pirates running around reading wikis on how to configure their router for piracy and how to get an i2p provider and how to get an index etc.
Torrenting right now is so broadly adopted because you just download a Torrenting client, click the magnet, click OK and you’re good to go.
If you HAD to set up port forwarding, some magnet handling register in windows preferences, just those two would stop the bulk majority of pirates. And that’s not even 1/4 of what you have to do to use i2p correctly.