A nice idea in theory, I'd love to manage networks devices using some open standard. However, I can already see what would happen if this were to become reality:
"You wish to configure your router? For your safety, you can only configure our VaporWare™ SecuRouter with our dedicated Windows 11 or phone app. Do note that any ad or tracking blockers might interfere with our super privacy preserving app (trust us, really!).
only Android, iOS, and Windows 11 are supported. App does not work without Internet connectivity. Android devices require Google Play services. Jailbreak and root access will trigger our SecuRouter Secure Data Protection mechanism and disable access from your IP address. Privacy agreements and terms and conditions apply. Product may not be sold in areas covered by the GDPR."
In fact, I've had to deal with routers that required me to log in through the ISP website rather than locally because of "security".