Yeah, it's not like they really have much of a choice. Sam Lane's treatment option is a risk, but Clark's already so far gone that he's in a coma. He's not likely to survive if they let the virus take its course.
I wish Clark had been honest about his feelings. He felt his time running short, and I've got to believe that leaving someone with that final declaration of love would be important for the people you leave behind. But hopefully the treatment Dr. Lane has proposed will work, allowing Lois and Clark to move forward together.
