Now I know that the Watchtower Society went beyond the things written. Paul said that celebrating those other events was a conscience matter, not a judicial issue. Jesus never condemned those who celebrated other events. The reason why Jesus' birthday was not celebrated in the Bible during his ministry is that the Bible could not report every detail of his life. And December 25 was picked, not because of the sun-worship festivals, but based on Hanukkah which often falls on or near that day.
That leaves only personal conscience as an admissible objection. And we should not impose our conscience on others (not only 1Thess 4:11 says so, but that violates the premise against coercing others). People can celebrate as they see fit, and if that means putting a billion lights on every surface on their property, so be it.
There are a few potential pitfalls, however. People still have to work within or below their means or they will face "Five Months of Bills". Putting too many lights on one circuit can blow fuses or start fires. And most important, people should not endanger lives and ruin their celebration by drinking and driving.