This just reminds me of an exchange I had like, over a year ago, where someone was adamantly convinced that the game's main draw-in was its multiplayer. Like yeah, the multiplayer deffo does have a big draw in for a lot of people, but when you consider that Mental Omega's biggest advertising moments were about "Hey, we have a campaign with the Allies, Soviets, and Yuri!", as well as "Hey, we have a brand new fourth side, and they also have a set of single player missions!", it's kinda obvious what kind of environment Mental Omega was trying to cultivate- one that focused on telling a story, with the added effect of attempting to have a balanced multiplayer.
That being said, I don't think it's going to influence development in any way. Even after the poll's results, Speeder himself said he figured it would turn out like this- which means he already knew that single player was the most prominent thing on people's minds.