The page's two safety lists are not identical: the FAQ names thyroid and blood pressure medication, and the checklist names thyroid and blood sugar medication.
Fenugreek and ginseng are both discussed in the research for effects on blood sugar, and ashwagandha has been studied in that area as well. For someone taking medication for diabetes, an additive effect is a possibility worth taking seriously.
The mismatch between the lists is probably an editing oversight, but it means no single list on the page is complete. The safe approach is to treat all three categories as relevant.
If you take medication for blood sugar, speak to your doctor or pharmacist before starting and ask about monitoring. Mention that the gummy contains fenugreek, ginseng and ashwagandha at unpublished amounts. Do not stop or alter a prescribed treatment without advice.