The WT started to get ahead of itself......
You phrased it perfectly. That describes so much of JW Teachings. Mother's Day, Birthday's Thanksgiving etc. No direction in the Bible but somehow it's wrong.
Of course, I think that the tendency to pick and choose what works for you is a common one. How many Catholics actually believe that birth control is really wrong? How many Evangelistic Christians really believe there is a burning Hell?
The problem is that if you are a JW and you VOICE these dilemmas, you are in danger of shunning. Why, because you are in disagreement with "present Truth", you may not be in disagreement with "future Truth" but that's another matter all together.
It is summed up best by this Scripture:
"when the perfection and fullness of God's kingdom arrive, all the parts will end. 1 Corinthians 13:10 The Voice Translation
In other words their own Scripture tells them they don't have the complete Truth now and yet they judge others as if they do. And this is true in many areas where there is no Scriptural direction or admonition at all. Where is that verse, "thou shalt only do Missionary?"
They seem to want to stand out as different in every way. It ends up making them appear foolish to thinking people.