Eh, while it would be easy to have another alt to offer that cyno with the proposed change, it would require another alt for safe carebearing - so it is still way more pain than now, when your other omega alt could also rat with carrier in another system.
(yes, I know it is easy enough to have alpha alt logged on, but it is against TOS, so you can get banned at least)
I believe it would work better with delay to opening cyno. Say a blops cyno requires 5s, a subcap might need 30s to open cyno, while capital needs 5 minutes. It would make saving capitals pretty difficult - try opening on a subcap and it might die in those 30s (or at least before the help can save it) against the covops fleet, while waiting 5 minutes for it to open on carrier is also a huge pain.