I accidently hit the "Post . . ." button. Now, we'll try again. I'll be as brief as possible.
First of all, there was no DD-214 prior to 1948. The form you have is a WD AGO Form 53-55. Always has been - always will be.
Secondly, the cites you refer to are War Department General Orders. Those indicated, GO #33 WD AGO of 1945 (General Orders #33 of 1945, which originated in The Adjutant General's Office of the War Department) and GO #40 WD AGO of 1945, simply announced the time frame and geographical limits for the campaigns set forth.
GO #33 deals with the Normandy and Northern France Campaigns and GO #40 with the Rhineland Campaign. For example, under GO #40, anyone serving in any capacity within the officially-prescribed geographical area between the dates of 15 September 1944 and 21 March 1945 - both dates inclusive - is entitled to wear a bronze 3/16" diameter star device on the European-African-Middle Eastern Theater Medal. Period.
The above device, often called a "battle star" actually had nothing to do with combat There was no minimum time requirement. An individual, serving in any capacity, anywhere within the officially-prescribed area, at anytime between 1 minute after midnight of the start date and the stroke of midnight of the the cut-off date, was authorized to waer the star device.