It does seem daft to expect customers to box up and transport speakers (many of which are a 2 man lift and require careful packing) and indeed processors to the nearest premium dealer just for an update many competitors now do via ethernet or similar.
I use a Denon processor (AVP-A1HD) and they charge a premium for upgrades and use a coded voucher to encrypt the download, seems to work ok.
I can understand the worry about unofficial firmware and its affect on performance but the end user matters too. Hopefully they can work out a way around it.

Roon Core,UltraDAC, MS600, Bluesound Node 2, Auralic Aries G1
Arcam AV860 Pre/Pro, Oppo UDP-203EU, Linn 350A/340A, SVS SB3000, Audio Research LS28, Revel Embrace, NAD Masters M27,