If you are building an engine today (~2023), Professionals are not building Hydraulic FLat Tappet camshaft engines? Don't try?

I'm building my 340 with a Comp Cams FT 262XE, and matching springs. I am going to check the crown on the lifters, and taper on the lobes. Using the best assembly lube and break in oil. Make sure the timing is spot on, oil system primed, lifters rotating, and the carb, fuel pump, and ignition components tested and adjusted on a mule. If I wipe a cam after this.......F*&K it! I can't believe the cam companies are still in business if failure rates are as high as it seems.