I don't see what's healthy in this growth. I can't say I hate it though of course, but I'm much more sceptical about the "healthy aspect".
I think it's good old FOMO due to hungry new markets.
If you sat back and looked at the actual Bitcoin system, nothing's changed technically, merchant usage is becoming impractical, users are whining like fuck.
None of that's healthy. It may not stop it though. All it requires is more buyers than sellers.
Or exchange manipulation mafia bullshit.