No.
Adams, St. Brown, Valdes-Scantling, Allison, and Kumerow are 100% making the team. That's five.
If Shepherd is going to make the roster, you're hoping GB keeps 7 like they did last year. If it's only 6 it means he beat out 2018 4th round pick J'Mon Moore (possible), Trevor Davis (less likely), Allen Lazard (TD catch last night as well) and a host of other guys.
I would have had Shep's chances at 30/70 before last night's game. After observing how he was used on special teams and on offense I think It's 50/50 now.