I think 1/2 of the issue with the old platform.. is getting people who are ABLE to support it.
Most of the hardware (outside of the 4k box?), the manufacturer (Cisco) is no longer making/supporting.. so its an old platform with bare min support from their end (probably only MAJOR firmware fixes).
With that being that way.. your amount of people who are going to be programmers, etc that work on that platform... are going to be small to begin with, and dwindling with it not being supported anymore.
Really in the end.. I dont think they had much choice at all, to move away from it.
That being said.. there are things with the Ignite could have been a dealt with a lot better... eating the install cost, etc. If it was free.. you would probably have 2-3 times the people have switched already.
(As for the reliability of Ignite.. its hard to compare it just off the reviews. Outside of the recorded playback issues, which were global a while back, and seem to have been 95% resolved.. with a PROPER setup, good signal, good wifi, etc.. a user should have NON of the issues that some are reporting. Almost all of them I guarantee are from bad setup. Mine is rock solid.)
Rogers Ignite Xi6, LG 47LV5400 LED TV, Yamaha