Because it's not like it's just a matter of commenting out a line with "if (version > 3){ explode(); }". The whole point of v3 is that it disables a ton of feat

Because it's not like it's just a matter of commenting out a line with "if (version > 3){ explode(); }". The whole point of v3 is that it disables a ton of features and extensions points, changing a whole bunch of stuff in various places. Maintaining parallel v2/v3 compatibility will likely be an ever-increasing burden on Chromium forks.