I don't know what people are honestly talking about about Dark Reapers being not expensive. They're actually one of the more cost dependant units in the game. Espicially if you acquire all three wargear weapons.
Considering you don't have Pinning Fire by default even.
Rough estimate of a fully upgraded Dark Reaper
350/30 base-cost
450/55 for pinning fire + dmg upgrade
620/90 fully-upgraded
Infact, if I see another god damn post about Dark Reapers not being expensive, I'll just dispute that post and see it a clear evident of machunk of biasness. Or at least have the decency to do your bloody research before pouring uneccasary post that makes me giggle with missinformation.
I spoke with alot of really really good (argueably the best eldar players) around when I first introduced Dark Reapers, and it was indeed the solution to SHI for Eldar in alot matchups. Of course, there's more variety to the mixture when you're adding that specific counter-measure unit regardless, so I had to take that into consideration.
Eldar did have issues, if the eldar fell behind in the tech race - they would ultimately have no real "unit" to actually effectively deal with it. That wasn't just specifically Ogryns, it was actually Terminators as well. Good luck trying to stop them with Shurikens.
Besides that, alot of the top-IG players would even field-counter-measure properties, like the Lord General "immune to supression" to completely negate the counter-measures that are even listed. Commissar Lord has a different approach to this, as well as the Inquisitor, but they both again - had nullifying counters to the listed supportive ability or whatever was actually mentioned again.
Even as I played IG vs other very potent Eldar, it was pretty much a non-debatable discussion that how effectively broken Ogryns were, and given circumstances of a SM snowball effect (rarity, but occurances abound) actually had a diminishable effect on the overall eldar tier2/t3 transition plays and how they can coope with getting behind.
Besides that, there's such a rare occurance that I even see Dark Reapers getting fielded at all, so I don't know how this verdict of Dark Reapers being at an odd place came about all of a sudden. Infact, I don't think they were even used once in the monthly tournament that was just held.
And on another note, it's easy to disregard my intended counter-measure units for some specific matchups to these units, and that might be at fault actually. What's already been discussed how "uneffective" Dark Reapers are against standard-issued Infantry units. So in a SM matchup, it was intended that Snipers were an ideal counter-measure unit, hench the damage/hp comparison so that Snipers can actually one-shot (or they should at least) a Dark Reaper model per shot. Effectively bleeding 43/4 economical damage per hit.
And that's something that I feel is probably the most genuine lack of counter-mesaure unit that ever gets fielded at all in some matchups. So I feel if you're an SM struggling against DRs, incorporate scout with snipers and come back to the topic at hand if they're not doing well enough in that matchup. Cost effiency vs upgrade effiency and all that.
So no, Dark Reapers are not being moved to T3, and that's final. It was the transition from T2/T3 snowball factor occurance that ultimately can put an end to an eldar vs X matchup. Dark Reapers providing a small pressure-potential towards vehicles is actually "alright". They're not going to go toe-to-toe vs any vehicle in the game (except for Trukk, but it's a Trukk for crying out loud) and come out ontop. If they're wasting their time in a matchup pressuring a vehicle instead of a designated SHI/HI unit, then that's their fault. Vehicles are not their top priority, and if they are doing it, you should capitalize on that misstake.