Randomex: You should never have to know, but the short answer would be yes.
The long answer: Everything is relative. Technology has allowed for a lot more manageability, and is getting better by the day. With T1D, very low glucose and very high glucose numbers are dangerous in the short term, while average high numbers may cause severe health problems down the road.
So bederch hateva better managed diabetes equals longer life and everyone with T1D must be mechalel Shabbos to manage it to the utmost.