not necessarily in terms of the one wound but in terms of the extra save conducive to some wargear...
Granted there are alternatives to LF's as HS choices but then again you are still forgetting the fact that a Razorback in itself grants an extra heavy weapons choice giving you three targets per turn instead of just one...and although it is not a scoring unit in and of itself...it is still considered part of the squad...so technically it can also be used for distributing wounds...which means your opponent now has to work out hits against AP rather than normal troops...the trick here is to put the razorback in the middle of the unit, keeping your marines on a centerline
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In this manner you maintain squad coherency and you have possibly broken line of site to half your unit...it's all in the set up and tactics you employ as to how your units can be observed and tageted
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I am Wolfpack, my fangs are long, my hair grey with age...I am The Great Wolf...I fight with bolter and Axe, my armies vast, my word final. A true son of Russ, my honor above all, I hunt the heretic, the xenos, and the witch and slay them where they stand! My sons hunt our enemies,
slay them where they falter and bring their pelts to Fenris