There's just no actual USE for it, when you try and USE Bitcoin you realise it's incredibly ineffective. I don't want to wait silly amount of times for a purchase to go through, look at digital purchases now in the market section, got and purchase an instant delivery, digital product and pay with Bitcoin. You will be waiting forever and a day unless you pay extremely high fees to have near instant confirmation, why would anyone use that when you can pay with PayPal or an alt and have it basically instantly.
Well to be fair, it's the most secure and stable (in a sense where it would be the absolute last to lose people's trust) crypto out there. Sure you can keep money in LTC or BCH, but I'm not as certain they would still be around tomorrow as I am with BTC -- something which is often overlooked when talking about currencies. You do have valid concerns with the transactions, but like majority of the community I don't think it will be this way forever; if it stays like this, then you're absolutely correct that it's going to have very limited use cases, and that perhaps it shouldn't be valued as it should. Only time will really tell, but for now you can't deny that its massive ecosystem sets it apart from other crypto.
As for Satoshi's vision, it's still a peer-to-peer electronic cash system, so there's that. Beyond that, he has left development in the hands of the community, so I'm sure he would be at peace however it turns out. If he
absolutely wanted things to have gone a specific way, he would have left a strict road map.