Yep, they enjoyed the sort of light hearted fun-poking, haha. From what I read, the Japanese version was a LOT less harsh though, haha. Still poking fun of course, but the guidance in particular had less "ganging up on Chrom" moments.
I don't believe the whole "Sakurai hates Chrom" thing for a second. Like you said, I fully believe he'd have added both if time and resources allowed for it. Sakurai himself seems to actually respect him, haha.
Or at least more so than the localization team. Robin just had
more options. Even I can admit to that.