It's unclear to me.
I received a $30 gift card in email on Monday (we don't go until mid-August) and Tuesday when I tried to transfer it to my card, it errored. I assumed it was because I canceled the second half of our split stay.
Yesterday afternoon I received the below email which seems to indicate they are still giving gift cards (at least in 2020) but on the website/app seeing the same wording you are - no mention of credits.
Information Regarding Service Your Way Benefits Email
"We’re contacting you because you recently received an email from Disney Gift Card Services containing a Disney Gift Card eGift. Please note that the email was accidentally sent to you a little too early and the Disney Gift Card eGift enclosed in the email is void. We apologize for any confusion the email may have caused.
Thank you for enrolling in the Service Your Way Program for your upcoming Disney Resort hotel visit. Upon check-in, you will receive an email containing your Disney Gift Card eGift to use during your visit. No further action is required on your part at this time."