@Red_Letti good for you for asking and wanting to learn more, if only every diabetic, what ever the type, was as pro-active as you!
I certainly don't low carb, although I do recommend it for T2.
Some T1s like to LC as a way of minimizing the peaks and troughs of their Blood glucose levels, there's less scope for insulin calculation errors and over doing hypo treatment if you're determined to keep very low carb.
I'm trying to think of an analogy for this....................and failing!.............
Think of it as a lorry with a tall unstable load on the back, driving along a flat straight motorway is easy - nice steady smooth steering and application of the brakes/accelerator, however using a route that's twisty and bumping makes it even harder to keep the load on the back of the truck, start to make sharp hard turns, and stomping on the breaks and hard acceleration you're going loose some of that cargo in the back of the lorry!
Perhaps I'm a A-Road kinda guy!