It’s not like the original URL is somehow encoded in the short URL, so this bot still has to request from t.co (and everywhere in between) to get the target.
The proxy is resolving all links, therefore denying twitter the information on which links you actually click (see also ad nauseum).
?
It only resolves the links navigated to, right? It shows you the interstitial page, but only when you try to navigate to the link.
It does enable you to get the clean link and share that.
And google, facebook, reddit, everyone. I suppose it is another thing to push back against, though.