Sorry. The eternal gender assumption problem.
This heavily implies pairings. Especially since Ike x Elincia is a near-impossible support to build and will only ever hold the two of them back because of this, unless it's FE9, when I'm pretty sure Elincia has no better choices. But even then, one, it still hurts Ike, two, it's still impossible to build, three, you're not really using Elincia, and four, we're not talking about FE9.
Arguing Ike x Elincia as a good pairing is fine. Arguing it as a good support would make you the new Smash.
Go back to her original post and read the three lines above the quoted one. It's #36.
I already read that. It changes nothing to how I interpret the post. But looking up further...
Maybe that explains why it went off-track.