We really need to stop using the "scam" word as a sort of synonym to "bad service"; because obviously there's a HUGE difference between the two.
PayPal's cryptocurrency-related services are definitely very very limited, but it has been the same with Cash App in the past. The likeliness of what's going to happen is, it's a slow rolling out of features; because I'm pretty sure PayPal is totally aware that bitcoin is really hot right now, and it's smart for them(business wise) to take advantage of this hype and roll out their buy/sell feature asap.
I absolutely agree with you, the word "scam" is far from PayPal and it's a shame to use these words together. It looks like PP seems to be a scammy company, similar of HYIP.
True story is that PayPal hasn't fully implemented bitcoin and cryptocurrencies into it's system. It's like a beta version at the moment, available only in the USA. At the moment, there are only these options available and it was clearly stated in articles and interviews that in 2021 they'll fully implement crypto and it's related services, so who to blame and why? At the moment all you can do is to hold virtual bitcoin and buy/sell it any time.