It will be good to also update their wallet, it is one of the wallets I can never use for now, it support only legacy addresses, one of the reasons many bitcoiners are still using legacy address when there are segwit addreses to be used. About their explorer, I find it easy to use, but I really like the new improvement, but I use more of blockchair.com because it still support more features like RBF.
Actually it's great as it is: it makes it easier to convince newbies use something else, preferably a wallet they install and that has (amongst other features) also RBF.
We tell for years that web wallets are inherently unsafe, but people don't care. Lower fees (SegWit) and RBF are better "selling points"