Same here, tried the eBag yesterday and it works great. The only downside I see is having to save the chart PDFs to a folder and run a batch file, but that doesn’t take very long to do. Having a Navigraph subscription would allow viewing geo-referenced charts in the aircraft displays, which is better (and has the ILS frequency in the upper left corner), the ability to have the flight plan PDF in a VR panel is really nice.
I do agree that, if you don’t care about a chart and all you want is the ILS frequency, then having it display when you select the arrival procedure would be ideal. The proc is already linked to the waypoints, altitude, and missed approach data, so how much effort would it be to include the localizer frequency?
EDIT: Come to think of it, in the Working Title CJ4 mod I fly, when I select an approach, sometimes the ILS frequency is automatically put into the primary navigation radio. Maybe this works 70% of the time, but it is so unreliable that I don’t pay it any attention anymore. I always manually get the ILS frequency and enter it. If it’s already in there, great!
So that tells me the ILS frequency is already there with the approach data, and all that is needed is an implementation to get it into the radio.