Australia isnt the only country that is thinking of dumping the NH90, here in Belgium, it was also announced last year that the NH90 is proven to be too expensive and in too little numbers to be relevant, especially the TTH version.
not to mention that the spareparts supply for the type from Airbus Helicopters is not all that great.
so now the plans are to withdraw the 4 TTH version from service by 2024 and replace them with a new type. the parts that are being freed up will be used to keep the NFH versions flying as they are more important for SAR and Maretime security duties. rumor has it that both the NH90-TTH and the 8 remaining Agusta A109BAi's will be replaced by 10 to 15 H145M's.
however, more recently, it has come to light that the 4 NH90-NFH's in service are too few in numbers to fullfill all mission requirments, especially counting in downtime for overhauls and maintainance, a problem that will only worsen when they will also recieve an ASW capability by 2025. so options are now to either buy 1 or 2 additional NFH's or another helicopter type for SAR duties (or outsourcing the SAR mission to a civilian contractor), freeing up the NH90-NFH's for the maretime warfare missions.
so Australia isnt the only country with issues.
even Norway is looking at other types as a stopgap as deliveries are also drasticly delayed.