I can't remember a stripped servo gear or failure from flying anything. Crashing, that's another matter. IMO I think you have servos you'll never have to worry about. Like Scale stated, the control surfaces on that model won't test the limits of your servos, and the only time I've seen anyone use a servo saver was on rudder / tailwheel control to limit any tail wheel shock transmitted to that servo. I personally never used one, got some sitting in a new package for a decade though for that rainy day I might need it.
Decades ago you could get airplanes as big as that Phaeton 90 when servo technology was quite primitive back then, and rated a fraction of the torque you purchased.
Limitations of those old servos weren't a major issue. I suppose if you're model goes 100 mph or you perform 3D stunts, high torque servos would be necessary.
I've been using standard servos with few exceptions meaning the used plane came with them, but I didn't choose to throw money into them thinking it's a weak link. Flying pylon racers, pattern planes, 1/4 scale, sport planes, .40 and .60 size, some pulled along rather nicely using 16,000 rpm Rossi engines, servos weren't a concern. I read more about high torque servos in recent years than ever before, as if suddenly its now a requirement. BS. I never said, "Oh my servos have reached their limit, I need to find a higher torque servo immediately."

Placing your pushrod clevis closer to the shaft of the servo with a round or 5 prong servo arm will be easier on the servo than the full arm length of the 4 prong servo arm.
End point adjustment can be set in your radio programming if you need more deflection but that plane doesn't need more than 100%.

I'd consider a high torque servos in a 3D model, or a plane that goes over 100 mph. Sadly most people fool themselves into thinking their sport plane can go that fast, and you walk over and see a lame OS FX .61 or AX .65 with a 12X6 prop. Do that math, a .60 sport plane will never see 100 mph unless it's going straight down off a cliff. Radar gun readings tell the truth and never feel the urge to exaggerate.