I consider a 19in. threat range ,'far away'
With flank, he gets pretty crunchy. Being able to move thru friendly dawnguard makes him pretty sneaky. Spd6+reach lets him cover a lot of ground as well.
....but require a substantial points investment. Often 10-12 pts. You could limp in for 6, but most folks go all in. With the Scyir you've got 2 points for an ultimately disposable can opener.
I'm not seeing this

. Scyir's effectively a MAT10 weapon master with an 11 threat range.
I'm gonna have to straddle the fence on this one. She does hit hard, but not nearly as hard as past DoOoM parties would have believe. Mat7, means she stands a plausible chance of missing high value targets, and once you take your shot with her, its pretty much lights out. Not too many players will risk allowing an MHA a second strike.
Scyir can hide behind dawnguard, and is not as feared an MHA. Ironsentinel means he'll survive boosted blast damage.
All that said aside, I always bring an MHA

. I'm just pointing out the potential of a cool, often unused model. (Yup, I'm one of those guys who plays with certain figs just 'cause they're cOol)
To preempt those about to say '
but Scyir needs a 'jack to get jiggy!' (

), every Retribution army brings 'jack(s). Some more than others. I personally love Griffins, and those buggers can be where they need to be in a pinch.
Lastly, I recently got hosed in a game in which my battle mages took massive casualties and failed their LD. I would have loved to have had a LD10 commander close by.