I think the key thing is not to put too much pressure on the bubble, either in the sense that it might loosen the glue, or dent the bubble itself. If the bubble is brittle there is a risk of cracking but I think if you are very careful there's no reason why you can't wipe the bubble over. I have done this with a couple of mine but it is true that some bubbles are sturdier than others.
I don't have a US carded Sweetberry so no idea whether they have any known propensity to weakness...but I seem to remember yours isn't discoloured which probably helps.
Gentle is the key thing. Gentle and patience.
I also wouldn't advise using water or wet wipes because although the bubble would probably be ok, you could get damage on the card.