The OP states in his original post that he’s going to build a new bench to replace his old bench. He’s just trying to figure out if building a bench like Paul’s, with its a large from apron, is going to create difficulties clamping pieces to the benchtop. I guess the answer is to imagine doing the type of projects and operations one does and see if one design or another works best for oneself.
You are absolutely correct about lots of great bench designs out there. I’m just finishing up a new Holtzapffel style bench (didn’t even know that’s what I was building until I googled the term). That said……. I’m also thinking about building Paul’s plywood bench design to check out the style, since I have 3 sheets of quality plywood sitting around from past projects. All it’ll cost me is the price of a quick release vise.