Conclusion: Sea power (including carrier aviation) may have a strategic effect on the course of a conflict if used correctly. This is frequently ignored by politicians, media commentators etc, but needs to be remembered in a world where something like 90% of nations have coastlines.
Are you confusing the focus on current ops with a belief we have forgotten the RN and what it brings? The globe is, after all, 7/10 water and we certainly owe our previous glories to being a maritime nation.
Oh - sea power getting captured and paraded on TV can have grand strategic effect too