Well, factually no firefights took place where Sisko was stationed between "Sacrifice of Angels" and "What You Leave Behind". So the contribution of the E-E would not have been needed there.
Some fighting did take place under the command of Admiral Ross who was stationed near Sisko's posting. But the only major semi-local campaign we hear of after "SoA" is the quagmire at Chin'toka. If we accept that the E-E could have been plausibly absent from the initial, televised attack there, then it's not as if our heroes would pay attention to that campaign again. It was off Sisko's shoulders after the initial success.
A quadriplegically quiet stretch of "front" should not attract the attention of the Federation Flagship, really. (Let alone the attention of some run-of-the-mill Sovereign like the E-E.
)
Timo Saloniemi
Some fighting did take place under the command of Admiral Ross who was stationed near Sisko's posting. But the only major semi-local campaign we hear of after "SoA" is the quagmire at Chin'toka. If we accept that the E-E could have been plausibly absent from the initial, televised attack there, then it's not as if our heroes would pay attention to that campaign again. It was off Sisko's shoulders after the initial success.
A quadriplegically quiet stretch of "front" should not attract the attention of the Federation Flagship, really. (Let alone the attention of some run-of-the-mill Sovereign like the E-E.

Timo Saloniemi