Have the router ask the server if there’s an update available when turned on. If none, proceed as usual; if there is, force the update, regardless of the time of the day. Problem solved.
Of course, for that you need to acknowledge that you violated the “ask, don’t be an assumer” rule, instead of bossing customers around with “golden rules”. You won’t change their silly and pointless habits anyway.
Claiming “multiple patent rights” without mentioning smells like kafkatrapping.
I think that Nintendo’s delayed reaction was to gauge how much money it could get from bullying Pocketpair to accept some unfavourable settlement outside the court; if too little the costs would be too high to bother, considering the risk, but now that Palworld sold a bazillion it’s more profitable to do so. It might actually backfire if Palworld decides to go through the whole thing, I don’t know how Japanese law works in this regard but if Nintendo loses this certainly won’t look good for them, and even if they win it might be a pyrrhic victory.