Symbol angle and font sizes are not passed by default from the 3D view to 2D drawings.
Even when using model based deffiinition, it is often required to deliver a 2D format to manufacturers or customers.
To make 3D match 2D drawings representations the symbols should be identical in format. Without this function, additional work is required to make the drawing match the 3D model.
PTC has noted that different formats are intended functionality in case CS73582.
Identical formats should be the default intent. If the ability to differ between the two is desired it should be through a setting to separate the instances.
Per PTC Support case CS73582 and SPR 2137143:
"1. A symbol placed in 3D with an angle, when shown in drawing has its angle set to 0. - the angle is not copied from a 3D symbol to 2D symbol. This is an intended behavior.
2. The font is not the same between 3D instance and 2D symbol. The texts in 3D symbol use default fonts and the texts in shown symbol on drawing use default drawing font. For example: default font in drawing is isofon, in 3D it is ttf_Font, setting the default drawing font to ttf_font the symbols in 3D and 2D look the same."
Added 9/6/2013: Ability to insert jog's into annotation leaders is not available in 3D, but once it's shown on a drawing they can be added. The jog could be to add clarity or used on additional leaders to reduce extra symbols. Again this is part of 3D symbols matching their 2D counterpart.