Well it is adequate by the key operational aspects (assuming bonding fixed).
However, I don't really like rewirable boards as not that many folks can safely rewire said fuse, both the act of changing the wire for more of the correct rating, and not attempting to remove/insert one in to a live board. In the past I would put in the Wylex plug-in breakers instead as a quick and approved means of avoiding that pitfall.
You could make a case that a CU upgrade would bring some improvement in safety on that front, along with SPD to reduce the risk to any fancy equipment, but it is still a C3 code so really more of advice for the future (e.g. if any new circuit needed, etc).