but the CAA had cold feet
No quite so. I believe eJ didn't use them because of the additional training costs.
Sounds silly, as they installed them in plenty of their a/c (approx £500.000 per unit). But training was going to cost them a hell of a lot more.
Who monitors the speed and all these modes
All this data is reflected on the HUD. IAS, FMAs, ALT, etc etc.
Mind you, plenty of bizjets and regional jets all around Europe are equipped with HUDs. All being capable of doing CAT2/3 (manual landings).
Regards,
Doc