Yeah.
The silly explanation is that after it all went down his powers stopped working if he wasn't in pain, and given that he's all but immune to blunt force he needed the spikes for his powers to work.
Spoiler: He's too deep for us, we wouldn't understand.
Context: At the time Squirrel Girl had a crush on Robbie, so when she found out what had happened because Deadpool lent her a copy of Civil War Frontline No. 11 she decided to go back in time to stop it, so she went to Latveria and borrowed Dr. Doom's time machine (he wasn't going to try and stop her, Doom does not commit the same error twice!). But it was too late, he was too far gone.