Is this a bug?

In the old Trados Studio import filter for DOC files, it was possible to define specific text to be excluded from translation. This function was called "Non-Translatable texts". We used this function to exclude text between "{" and "}" - containing non-translatable field names and meta data.
This worked good and was an essential part of our workflow to translate report templates for users of our microscopy and imaging software.

As the DOC format is outdated, and DOCX is the new standard format, we did not expect that this "Non-Translatable texts" function would be missing in the new DOCX import filter. It seemed like a bug to us.
It would be very helpful to have this function transferred to the new DOCX import filter.

We are trying to establish a new stable, robust workflow without this function for the translation of our DOCX files. But this is causing several problems, why we already had to log 3 support cases (00306623, 00309563, 00309576).
The task to translate our DOCX files is a recurring task for many files and many languages. We think that other customers also would appreciate to have this efficient and well-working "Non-Translatable texts" function back again.