When I first bought my previous car it came with foam mushroom filters on the carbies. Sure enough one disintegrated after a while. The car stumbled and felt down on power for about 100 meters along the road, so I gave it some throttle (I was younger and dumber) and a few seconds later an almighty bang shot out the exhaust accompanied with a huge plume of black smoke. The car drove fine after that and there were no issues in the 8 years following that. That motor was far less sophisticated and tough as nails compared to the FA20 so its comparing apples and oranges I guess.
If it were me I'd swap it out for the stock intake or a quality aftermarket like the grimspeed but there is no hurry. Drive the car as it is and keep an eye out for one of those intakes that suits your budget
