I have my own easement issues for beach rights on Whidbey Island. I have had the door slammed in my face when I tried to discuss it with the owner. Plantings have been installed that prevent the full, safe use of said easement. I possibly could sue but I understand it is an expensive process. Isn't the end game, just to restore the easement and allow its use as intended? The rest of that fight will just delay the game. If there was a financial settlement where do you think that money would go anyway?
You have an issue that apparently affects to some degree your easement but does not totally eliminate your use. Tough call. Maybe a letter from your attorney might get their attention and avoid a possible law suit. Clearly your decision.
Is restoring access to an existing easement the end game? No. It is clearly the No. 1 priority followed by actual damages and then possible punitive damages for the reasons I have already set forth.
Where would any money go? Well, that has also been discussed with ideas ranging from a fund to maintain the site and/or others on the Cowlitz, upgraded services at this location and fishing pond(s) at this site to cite a few. The Court could stipulate how any monetary damages might be utilized.