I believe you mean removing the gemmae. I'm not sure why you ask as there are no gemmae in the photo. I remove gemmae when they form in the autumn carefully using curved tweezers. This leaves the roots undisturbed and the plant able to pull itself down in the medium to overwinter.
no, clean a little around the hibernaculum to prevent it from being smothered.
No, never. I don't see the point of changing a condition that is perfectly natural. I prefer to leave plants as much in their natural condition as possible. After all they have far more experience than we do. Rather than look at the situation as smothering I tend to regard it as the plant utilising natural insulation
for me there is a risk of smothering. In France, many populations of Pinguicula disappear like this, especially in plain as vulgaris and lusitanica ,for example on my department where we have been forced to restored sites.
for corsica, all do not grow 'in situ' in those background may be on the podzol and even
this year I'm going to see 'in situ' some populations corsica ( type, subsp pallidula, subsp caerulescens ), then I would have a better idea of their backgrounds