Will it force Canon to bend under the pressure? Probably not. But if we get enough people, it will show manufacturers that there is a market for 24p DSLR and maybe the pressure from other manufacturers will force Canon to act. After all, just imagine the amount of lost 5DMrkII sales if Nikon was to announce a direct contender to the 5D that could shoot at 24p!
All that being said, 24p is not as much an issue for me as the lack of manual control over the exposure settings. How come this issue is not talked about more often? The duct tape solution is not solution!