I'm not seeing the issue here.
Buyer's remorse?
Granted, stimpacks are good. Stimpacks are REALLY good. Healing 8 damage on the first use of a stim is awesome especially since stim healing can be supplemented with normal first aid. And I haven't seen long-term care come up once yet.
How often long-term care comes up is really up to the GM. In my groups there is usually enough down time between adventures that I don't worry about it. However, my next EotE session will pick up the day after the last session and some folk picked up a crit. So being able to treat such things in the long term will be a factor.
Actually, now that my groups have some experience, I plan on having more times where the long term treatment of such things will matter.
Edited by BillW