I'm pretty sure if this sort of thing was going to happen the staff members would inform us in a update they give out.
If a staff members didn't say this, then it's a false rumor.
It's very unlikely that this will cause Internet failed for users, Feral Heart is only operational as a MMORPG game and only uses Internet to connect players. If you lose Internet connection then it's not from this game it's from something else.
The only thing that is down is FH+, and that's due to it being re-designed by Simba. It will be relaunched in the Feral Heart map section as a regular map due to Feral Heart not supporting fan made versions of the game.