Well, that's a bit of an apples and oranges question, since 2011 was before they came up with the fakakta rule about how characters tagged 1000+ times are ineligible even if their nominated fandom is eligible. The fandom's eligibility was all that mattered.
But since I'm sure there were eligible Marvel 616 titles that featured both Steve and Tony in 2011, then broadly speaking: sure, Steve/Tony was eligible in comics fandom, too.
Re: God I fucking hate Zarabithia
Well, that's a bit of an apples and oranges question, since 2011 was before they came up with the fakakta rule about how characters tagged 1000+ times are ineligible even if their nominated fandom is eligible. The fandom's eligibility was all that mattered.
But since I'm sure there were eligible Marvel 616 titles that featured both Steve and Tony in 2011, then broadly speaking: sure, Steve/Tony was eligible in comics fandom, too.