While I did use Force Touch in a few apps, that was mainly because that was the only way to get at some of the options within those apps. I don't think I would say it was an essential feature. Force Touch also came with the downside of incredibly poor discoverability. There was never any visual indicator in the OS that additional options could be access by force touching the screen. That meant you had to go around randomly force touching your watch to see if more options appeared. That's both not a particularly great user experience and also something that nobody outside of power users would think to do. Couple all that with the fact that Force Touch added cost and thickness to the watch, and it's not hard to see why Apple is axing it this year. Everything done with Force Touch can be accomplished with a long press or a more traditional menu. As with 3D Touch on the iPhone, I do prefer the pressure-sensitive option. But, it's not enough to make me lose any sleep over the feature's removal.
What I absolutely cannot get behind is Apple's apparent decision to relocate many of the options previously revealed by force touching to the settings app. (Full disclosure, I don't have watchOS 7 installed so I am only going on what I have read so far.) That's a huge UI downgrade if it holds all the way to release.