Yes it is.
Cross-country nav is a juggling game of GPS, VOR, DME, ADF. then when nearer to airfields radar and ILS. Plus to a large extent you still use DR en-route in IMC.
The reduction in the number of VORs is a mild nuisance but no more than that. The reality is that most people now will use GPS en-route anyhow, but sensible pilots back it up with periodic cross-checks on other navaids.
I use my IMCR / IR(R) regularly and my only regret is taking so long to get around to doing it - I flew on long trips in marginal VFR for 10 year with a lot of weather diversions. I'm now studying to upgrade to the full IR so that I can use the ability outside of the UK, because it's been so useful within the UK.
G