The signing of Armstead and Kelly also likely factored into the decision to let Love go.
It's better for the Pats to cut Love now, so he can catch on with a team before OTAs start. Then wait till TC and cut him, which would really screw Love over.
Also the Pats drafted Marcus Cannon two years ago who was diagnosed with cancer at the combine. Armstead who they just signed had a heart attack at USC, and the Pats managed matt lights crohn's disease for a decade. It's not like the Pats get rid of players just b/c of diseases.
Either way I like Love, hope it works out with the Jags for him.