My bad. I get all those Utah schools mixed up. You sound like you watch a lot of PAC 12 games, if so you have seen that Kikaha is the first guy off the line. His burst is special. If anyone is getting help, I would say those 2 guys benefited just as much if not more due to Kikaha's pressure. And Kikaha did not get the majority of his sacks in a handful of games. Kikaha had at least a sack in every game in 2014.
I like Kikaha and wouldn't have a problem taking him. If I could have anyone off that UW defense though...it would be Danny Shelton. He commanded double teams like few in college football, while also producing some impressive stats for such a big guy. The defensive unit benefitted from HK's presence no doubt, but he had more help than Orchard overall, particularly in terms of the caliber of talent. Here are some numbers of 2 other D-linemen on the Huskies:
Danny Shelton: 93 tackles, 16.5 tackles for loss, 9 sacks
Andrew Hudson: 77 tackles, 15.5 tackles for loss, 12.5 sacks
Utah runs a fairly aggressive scheme...so several players accumulate a few sacks. The next closet person to Orchard had 8.5 sacks...10 fewer sacks than him. Next closet to Kikaha was 6.5 shy of him. But Orchard was the primary focus of every opposing offense, while Washington had 1st round prospects Shelton, Thompson, and even CB Marcus Peters for a time...in addition to HK & other guys like Hudson.
HK's consistency is one of the things to like about him...as is the burst you mentioned, his motor/hand usage, & fantastic production.
I don't mind a player getting a few sacks in bunches like Orchard did in the UCLA & Stanford games, as it was against 2 solid opponents, and Stanford featured a 1st round NFL OT.
Aside from the combined 21 tackles & 7.5 sacks Orchard recorded in the UCLA & Stanford games...he also did well against some other decent opponents:
Oregon: 8 tackles, 1 tackle for loss, 1 sack, 1 forced fumble
USC: 6 tackles, 1/2 sack
Arizona: 6 tackles, 1 TFL, 1 sack
Arizona St: 10 tackles, 1 TFL, 1 sack