[ZeroGravitas]

I'm not sure I accept the premise.

I can imagine it being both more efficient and just better in various measures as well.

For starters just the ads and trackers must have a cost, which is paid on every visit.

As we've seen many times on the internet, cacheable content can be far more efficient than constantly updated content that needs refetched just to show you an ad impression. Google's web page speed tools will warn you about Google Ads non-cachable JS tracker.

Combine that with the incentive to show growth in 'user' metrics, which encourages both leniency on bots and intentionally addictive designs for non-bots and I can see an obvious case for twitter being less efficient.