This is to add some safety layer to protect potential downside coming from the following
1: Looking into its finanical performance over last few quarters, APP earning power is highly dependent on maintaining its 80%+ margin. Any impact to this margin (either macro level economy or company specific competition) will result in double compression of its value (much lower EPS value and lower growth)
2: APP's moat is in mobile gaming. This is very hard to replace even if Google/Meta apply AI in this field. I am not so sure about e-commerce, and this is probably what investors worry about, in that Google/Meta leverage AI to run a more targeted Ad network for e-commerce advertiser
3: The broader market still has possiblity of a pullback. APP currently carries a forward PE of 26, and that may get knocked down a bit even if none of 1 and 2 happens