No, I don't think so. If they were going to work with the dynamic between Surge and Breez I think it would have come up before the ending, and I don't think any of the last-minute changes would have affected it greatly. I think it was probably more a consequence of the writer having to divide the 22-minute episode between seven heroes and not wanting to focus on any particular two-character dynamic at the expense of the other characters.Could this have been the result of them having to rewrite the ending in 12 hours?
I suppose it would have been really nice if Surge at least had trusted her, as a callback to how she used that same ability to communicate with ferocious monsters to save his life back in Rise of the Rookies. Surge and Breez have had a pretty strong team dynamic from the very beginning, and the writer of Invasion from Below sort of played on that in Brain Attack, so it's a bit of a shame that it didn't come up in this episode. It would have helped Surge stand out more as a character for sure.
The fact that Breez and Surge got to interact so much in "Brain Attack" could very well have been a happy accident: Surge had a special role in the episode as the hero the brains took over, and Breez (unlike, say, Rocka) happened to be available and well-suited for the final confrontation with him.