Thank you for the advice, I have just applied for it. To be honest, as a Dutch citizen, I had never considered obtaining Australian citizenship because it is not possible to have for the Dutch to have dual citizenship. The Dutch government requires you to give up citizenship if you are a citizen of another country (unless born there). However, I've just become aware that they may be changing this so maybe it will be a possibility in the future and then it would not be necessary to keep applying for the RRV and meet the 2/5 year rule.
Since I have unfortunately allowed this RRV to lapse by 1 month, will this impact on my eligibility for citizenship in the future?