You don't even have evidence to support your claim of "No, sorry"
Seeker already got buffed with 15% reduce magic damage. I got 104 atk lvls with rune and around 927 dex, and I crit for 8-10k a seeker in def camp(metal combo with metal debuff, other hits go for 4-6k). I don't want it to have same stupid buff as cornered and survive my BV while being stunned because last stand procs on the last hit. Seeker compared to barb has more ways to defend itself, there's no need to make it an active buff.
i don't think it's possible