For the record I just tried merging the patch into Trailblazer, via extracting them both to folders, pasting the patch contents into the main folder, then putting it all into a zip file. Then running that, or renaming the zip to pk3. I get this error:
Script error, "Trailblazer_v1.4c.pk3:decorate/items/berserk.txt" line 35:
Parent type 'TBPowerupPortableBase' not found in BerserkPortable
Execution could not continue.
Script error, "Trailblazer_v1.4c.pk3:decorate/items/berserk.txt" line 37:
'@property@inventory.pickupmessage' is an unknown actor property
I don't get an error when trying to run 1.4c without trying my attempt at the patched/merged version though, in GZDoom 3.7.2.