Most likely ED success in eyes of FD is measured by active players, players coming back on regular basis, and very importantly MT sales. Units sold alone - with all scepticism regards Horizons worth and people requesting other, more interesting features before upgrading to expansions - confirms that ED is very healthy and is not going away any time soon.
If you want to express scepticism only because you think shrinking game will force FD to do your bidding - stop it. It is silly premise, but I know for some reason lot of gamers thinks it has some merit. Core improvements is coming. Thargoids is coming. Game is on right path. FD, keep it coming.