If we're being pedantic, then OP didn't even mention that their needs are basic. They only mentioned they can write and post, which doesn't say much.

But they did mention that it's polished with no bugs, which is not true. They talked about the material You design which again is basic in Thunder and exhaustive in Sync.

And finally they mentioned Thunder being perfect which it isn't and it's improving by every release.

Clearly with direct comparison, it lags against Sync in every department and only that's what I mentioned in my post.