The first problem with the EC as a target for voting reform is that voting reform, since it goes against the personal interest of elected officials, needs very

The first problem with the EC as a target for voting reform is that voting reform, since it goes against the personal interest of elected officials, needs very broad popular support to succeed. (This tends to be true of changing any political system.) But the EC means that some regions will likely oppose voting reform quite vigorously. The second problem is that the EC basically only affects the Presidential election (unless you restructure the Senate, but just look at the filibuster debate to see how that goes), but most candidates get to there downstream of other elections. And in the other elections, some depressingly large proportion of legislative districts and even some entire states are lock-ins for one party. All of that is most feasibly addressed by state-level reforms that won't be part of an EC change. So it's very hard, and it's not enough. That's not great.