Who says Lemmy should/must/has to be a “serious Reddit replacement?”
Who decides on what features it needs to be a “serious Reddit replacement?”

It has already replaced Reddit for me with it’s current feature set (I’m just waiting for my GDPR export to go through to bail out from there),

I suspect certain video oriented communities will go elsewhere. /r/combatfootage was my only Reddit video community, so it hasn’t impacted me much.

I’m running !spacemusic@lemmy.ca now which occasionally links to YouTube videos when other sources aren’t easy to find. We will see how that goes.

Probably features will get added over time. Maybe the federated video hosting stuff will take off some day. But from a bandwidth perspective, that might be hard for these volunteer run servers to handle.