There's nothing wrong with steemit losing some (or a lot) of its ranking over time. Steemit Inc's main purpose in life isn't to dominate the steemverse with steemit.com; it's to make the steemverse HUGE, diverse, and awesome.

Ned (the CEO) has said (approximately) this more than a few times times "If there are so many good products out there that people don't go to steemit.com, that's a measure of our success".