Yes, it is much better to put your cold storage coins in a legacy address. Ali Baba should read about "Pascal's Wager". I believe the same argument would apply in this situation.
It is insane. If somebody took kinda pill and got a bit more delusioned than @anunymint to make prophecy about an upcoming fork that will disregard/scize all odd wallets, you would transfer your deposits to even wallets? Why? Because of "Pascal's Wager"?
I believe you do not understand the situation? If the "Satoshi miners" start their "attack" there would be a chain split to Bitcoin and TRB. In the Bitcoin chain, everything will continue as normal. In the TRB chain, your coins stored in a Segwit address can be taken from you. I do not want that. I want to dump my TRB for Bitcoins as an extra bonus from the split, the same as my Bitcoin Cash and Bitcoin Gold bonuses. Hahaha.
Who is Ali Baba by the way?

I believe you.