I find suspension on hybrids, where you aren't riding singletrack and trying to be like a mountain bike, to be totally pointless. I have a Specialized Stumpjumper which originally came with a rigid steel fork that I replaced with a Rock Shox fork, it did make quite a difference when out trail riding/singletracking, but only added weight and did nothing but slow the bike down when riding on a path or road. It is a good mountain bike, but a not so good path rider, which my 7.5 fx is. I am just a lot bigger fan of the fx series than the 7000 series, I find them more of a responsive bike. The one good thing about suspension seat posts is that they are easy to replace with a rigid one, just not a fan of them.
The 7300 is a solid bike that you can put front and rear racks on and ride all over with, a good do it all-er. The adjustable stem is nice as you can fine tune your comfort level up front. If its comfortable for you it seems like it would be a good choice for path riding and heck, you may really like the suspension seat post. I don't believe you need a mountain bike for that kind of riding, but if you are planning on going singletracking in the future and want to take on tougher trails than maintained paths, a mountain bike would surely be helpful.