It won't hurt and its certainly better than having binding loading the throttle servo, which would drain the batteries in flight.
Better on the throttle if you can elminate the binding by adjusting or re-routng the linkage... Or if your radio has an adjustable travel volume (ATV) dial it to where it doesn't exceed the carb movement range.
I like putting some sort of flex in the nosewheel linkage to help prevent it stripping the servo gear on a rough landing... I rarely use a "servo saver" though...
I usually use a nyrod with purposefully marginal support, allowing the nosewheel to flex the nylon pushrod.
You can also make a servo saver from 2 pen springs, an EZ connector and 2 wheel collars.
On the push-rod: wheel collar, spring, EZ connector with set screw deleted, spring, wheel collar. Adjust to have the springs compressed about 40% to 50% (cheaper than buying servo saver kits in the long run)