I wonder why this happened

I refuse to link to this paper, but here is an excerpt:
The UK has been left out of major trans-European transport projects that the EU is expected to approve. The trans-European transport network (TEN-T) regulatory framework agreement between the European Parliament and the European Council was approved earlier this week by the European Commission.
The new plan sets mandatory goals, such as having all trains in the network reach 160 km/h or faster by 2040 and putting in place a single European signalling system.
[…]
Adina Vălean, the European Commissioner for Transport, said: “This is a landmark agreement for the EU.
“Europe needs a transport network that addresses the mobility concerns of our citizens and businesses, both sustainable and resilient, and that builds a bridge with our neighbours, in particular Ukraine, Moldova and the Western Balkans.
I wonder why the UK was left out. It’s a mystery I guess. Those fuckers in the European Commission and European Parliament have it out for the United Kingdom!