Russell Wilson has been so healthy, he has played more 16-game seasons than QBs that have been playing before 2012.
This past year was the first time we've really seen what a Wilson-less team can look like and it was scary.
While we saw glimpses of what Boykins can do, his small history of dumb choices may impact his on-field chances. The team let go of local-boy Jake Heaps (who is still partnering with Wilson on Wilson's QB Camp) and signed Austin Davis (formerly of CLE and STL). His last snap was in 2015 for CLE where he started 2 games. In 2014, Davis did get 8 starts and beat the Seahawks in St. Louis (Kam Chancellor hold-out).
Some have brought up Collin Kaepernick but my guess is that unless a team suffers a big injury, he won't get signed.
The goal should always be that you go as far as your QB can take you; with a back-up at the helm it's a bad sign for any team.
My faith is that Boykins stays with the team because he's young, cheap, seems to run an offense similar to Wilson's skill-sets (not at the same level) and with a healthy defense, could keep the ship afloat for a short time.
I hope we never reach that though.