I so checked what is this signature technology. This is really hard to understand for non crypto experts.
But if I well understood the use of this technology is the reason why IOTA core developpers insist on generating a new address each time we want to receive a IOTAS in the same wallet.
This is not a big drawback to my opinion.
It is possible and sure to transfer iotas to the same address, you can receive iotas (several transactions) on the same address, no problem. Only if you
spend iotas from this address it's no so sure further.